"SPL image too big" not that helpful

[Tom Rini]

On Fri, Mar 19, 2021 at 10:05:55AM -0500, Alex G. wrote:
> On 3/19/21 9:27 AM, Tom Rini wrote:
> > On Wed, Mar 17, 2021 at 06:42:55PM -0500, Alex G. wrote:
> > 
> > > I've recently hit that message in a yocto build. I can't figure out the
> > > exact root cause. On the one hand, I don't know how "big" SPL is. On the
> > > other hand, I can't objdump -h the SPL elf because one wasn't created.
> > 
> > So that comes from arch/arm/cpu/u-boot-spl.lds and I'm not sure how to
> > make it more helpful, aside from having something under perhaps
> > doc/build/ that explains the error more fully and have the build-time
> > error point to that file.
> 
> Is there a way to print "SPL too big: _so-may_ bytes, only _max_ possible" ?
> In a local build, one could modify the source to increase SPL max size,
> rebuild, and objdump the SPL elf, see how much SPL overflows. That is much
> more tedious to do in a remote/yocto build.

It's a preprocessor error basically, so I'm not sure how much we can do
in that exact location.

-- 
Tom
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