Re: [arm-gnu] zeroing out the .bss area

[Carlos O'Donell <carlos@xxxxxxxxxxxxxxxx>]

Mark Deneen wrote:
> shaved ~350 bytes off of my boot loader, which allowed me to fit
> x-modem with a serial console.  My size constraint was set by the
> minimum flash page size on my micro.  However, I am not using any of
> the runtime libraries.

Have you re-implemented the compiler helper routines in libgcc.a?

Otherwise, you must verify that none of the compiler helper routines 
expect zero initialized variables in .bss e.g. verify link map has no 
objects from libgcc.a which place variables in .bss.

Cheers,
Carlos.
--
Carlos O'Donell
CodeSourcery
carlos@xxxxxxxxxxxxxxxx
(650) 331-3385 x716