[PATCH] arm: move _end to linker symbols

[Ilias Apalodimas]

[...]

> > > -             *(.__end)
> > > -     } >.sram
> > > -
> > > +     _end = .;
> >
> > Does this have any kind of consequence in terms of checking the offset of .end vs
> > the SRAM size ? (.sram)
>
> The value of _end does grow by 16b on the SPL for the kria boards, but
> it doesn't seem to cause issues.
> I can only find a single assert on those checks in
> arch/microblaze/cpu/u-boot-spl.lds. Anything else you spotted?
>
> Keeping in mind that the code used to be like that before that linker
> bug -- defining a linker symbol instead of a section, I don't think
> anything will blow up

Also if you compile with -O2 instead of -Os the final binary and the
_end memory address remain unchanged. So I assume the changes in the
_end offset is due to compiler optimizations since the .end section is
removed

Cheers
/Ilias
>
> /Ilias
>
> >
> > >       _image_binary_end = .;
> > >
> > >       .bss :
> >