[U-Boot] [PATCH v3] spl: add overall SPL size check

Tom Rini trini at konsulko.com
Mon May 27 16:48:11 UTC 2019


On Tue, May 28, 2019 at 01:35:52AM +0900, Masahiro Yamada wrote:
> On Sat, May 25, 2019 at 5:07 AM Simon Goldschmidt
> <simon.k.r.goldschmidt at gmail.com> wrote:
> >
> > This adds a size check for SPL that can dynamically check generated
> > SPL binaries (including devicetree) for a size limit that ensures
> > this image plus global data, heap and stack fit in initial SRAM.
> >
> > Since some of these sizes are not available to make, a new host tool
> > 'spl_size_limit' is added that dumps the resulting maximum size for
> > an SPL binary to stdout. This tool is used in toplevel Makefile to
> > implement the size check on SPL binaries.
> >
> > Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
> > ---
> 
> Some architectures have SPL size checks.
> CONFIG_SPL_MAX_FOOTPRINT
> CONFIG_SPL_MAX_SIZE
> CONFIG_SPL_BSS_MAX_SIZE
> 
> Will they be replaced by this new mechanism?

Yes, as the existing checks are only sufficient for final link time
overflows and not final image overflows.

-- 
Tom
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