On Wednesday, October 6, 2010, Reinhard Meyer <[email protected]> wrote: > Dear Graeme Russ, >> I had a quick look at this and nothing is jumping out at me. Of course I am >> not familiar with ARM asm... >> >> I don't see any reason why this ultimately will not work eventually. You >> may be having some issues with the transition from asm->C->asm through the >> relocation - This was an especially painful thing for me involving an >> intermediate trampoline which I have only recently figured out how to remove. > > I think the relocation itself works fine, when looking at the debug output. >
Time to disassemble using objdump >> Maybe some memory barriers are needed to stop the C optimiser mangling >> things? > > It can't really optimize across the call to the (now wrongly named) > reloc_code in > assembly. True, objdump will clarify > >> Interestingly, ARM is adding gd->reloc_off while x86 is subtracting >> gd->reloc_off. If this is correct, I need to change the calculation of >> gd_reloc_off to be consistent > > It should always ADD it, when it is calculated as "Final Location" - "Current > Location". I have my calculation the wrong way around > Note, of course, that the value itself might well be negative. > > If, for example, the NOR Flash is at a higher address than RAM... > Which it is for x86 Regards Graeme _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
