On Wed, Sep 30, 2020 at 05:39:15PM +0100, Andre Przywara wrote: > Currently selecting CONFIG_POSITION_INDEPENDENT also forces us to use an > initial stack pointer relative to the beginning of the BSS section. > This makes some sense, because this should be writable memory anyway. > > However the BSS section is not cleared or used until later in the > setup process (after relocation), so memory nearby might not be > available early enough to host the initial stack. This is an issue if > U-Boot is loaded from (Flash-)ROM, for instance. > > Allow CONFIG_INIT_SP_RELATIVE to be turned off by a board's config, to > be able to select a fixed stack pointer, for instance in known good > DRAM. > > This will help QEMU utilising PIE, when it's loaded to (Flash-)ROM. > > Signed-off-by: Andre Przywara <andre.przyw...@arm.com> > Reviewed-by: Stephen Warren <swar...@nvidia.com>
Applied to u-boot/master, thanks! -- Tom
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