On Tue, Oct 08, 2013 at 08:17:01PM +0200, Wolfgang Denk wrote:
Dear Tom,
In message 20131008134456.GB15917@bill-the-cat you wrote:
Well, if we have DDR such that we can use it for the malloc arena, we also should use it for the stack. Or is there a good reason for not doing this? It would solve all these issues at the root...
Making SPL more complex for everyone? We would need to do a fairly good-sized re-jigger of SPL to setup and swap around stack pointers like we do in full U-Boot.
Hm, I'm not convinced. As proposed, we make the code bigger, less efficient, more error prone and more ugly for everyone, not only for SPL users. Aslo, this might not be the only place where buffers or such may be kept on the stack. I hope you don't want to change all these?
Really, if we have the resources, we should use them. If RAM is abailable, it should also be used for the stack. Just using it for malloc() is neither fish nor fowl.
I'll ceed the point and re-work things on my series then. Markus, your patch is good as-is and I shall pick it up shortly.