[U-Boot] Build failures with older toolchain

Premi, Sanjeev
2010-12-01T15:18:31Z

> From: Albert ARIBAUD [mailto:albert.aribaud at free.fr]
> Sent: Wednesday, December 01, 2010 8:33 PM
> To: Premi, Sanjeev
> Cc: u-boot at lists.denx.de; Wolfgang Denk
> Subject: Re: [U-Boot] Build failures with older toolchain
>
> Le 01/12/2010 15:56, Premi, Sanjeev a ?crit :
>
> > When everything failed, I went back to the u-boot.lds and
> > changed the way overlay is defined.
> >
> > ...AND PROBLEM SEEMS TO BE SOLVED!
>
> This most probably means some of the code running before
> relocation uses
> BSS; see below.
>
> > I can now compile u-boot with both 2009q1 and 2010q1 without
> > any error. (yet to try with 2010.09)
> >
> > To verify, I wanted to do a before-and-after comparison but
> > couldn't have done for the omap3_evm - used omap3_beagle instead.
> >
> > I haven't yet tried running the binary on the board; but here
> > are top level observations:
> >
> > 1) .bss and .rel.dyn are starting at same address.
>
> This is normal and should not have any negative impact as
> long as code
> that runs before relocation does not access BSS -- and it should not,
> since BSS only exists after relocation.

[sp] Yes. This is what I wanted to confirm to ensure that relocation
isn't breaking after the changes. In a way it was my testcase
to see that I get similar map for omap3_beagle before and after
making changes.
>
> > 2) The size of .rodata has increased. (Why? not yet spent time on?)
>
> Weird. Can you provide all necessary info for duplicating
> these two builds?
>
> > Sending the patch in next few mins:
>
> If that's a patch to remove the overlay in the .lds, it's a
> Nak from me
> already.

[sp] No. I am not removing relocation. Do look at the patch.
I just sent from my Linux box..

>
> > ~sanjeev
>
> Amicalement,
> --
> Albert.
>