[PATCH] image and bss size decrease

[Sascha Hauer]

On Sun, Mar 10, 2013 at 02:38:06AM +0800, Jean-Christophe PLAGNIOL-VILLARD wrote:
> 
> On Mar 9, 2013, at 6:53 PM, Sascha Hauer <s.hauer at pengutronix.de> wrote:
> 
> > This series decreases the image size and bss size a bit. First
> > we make malloc available in all initcalls by moving the malloc
> > pool initialization before start_barebox().
> > 
> > We then decrease the image size by making some statically initialized
> > structs smaller. struct command has a struct list_head member
> > which can be removed by wrapping the static struct command into
> > a dynamically initialized one which contains the list_head. Also
> > the embedded struct device_d in struct bus_type is removed in
> > favour for a dynamically allocated one.
> > 
> > Also we make the bss smaller by allocating the FILE table and
> > the gpio_desc table dynamically. The bss size is may become
> > a problem on boards which run from SRAM. Here the malloc pool
> > is in the big SDRAM area, but the bss is in SRAM, so it makes
> > sense to move the big tables from bss to SDRAM by using malloc.
> > 
> 
> How much less
> 
> IIRC I try this too but with PBL it's bigger

With PBL it's still smaller, but on a pcm038 defconfig it's only 18
bytes, so this is not really worth the effort. Decreasing the bss
size still makes sense though.

Sascha

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