On 06/10/10 01:48, Reinhard Meyer wrote:
arch/arm/cpu/arm926ejs/start.S | 8 ++++- arch/arm/lib/board.c | 57 +++++++++++++++++++++++++++++++++++++++- include/configs/top9000_9xe.h | 1 + 3 files changed, 63 insertions(+), 3 deletions(-)
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.
Maybe some memory barriers are needed to stop the C optimiser mangling things?
I am sure what you have is very close to the real solution :)
I do think the main relocation fixup loop can be moved into a common library in which case we can add additional case statements. The nice thing is that x86 as all Type 8 which is specifically allocated to x86 so my "if
TEXT_BASE" checks can be kept. For size freaks, we could litter the code
with #ifdefs to remove un-needed cases ;)
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
Regards,
Graeme