On 06/24/2013 12:37 AM, Vineet Gupta wrote:
> Aha, I see what's happening. For historical reasons, ARC Linux kernel stack
> unwinder relies on .debug_frame (vs. .eh_frame) for stack unwinding. Being non
> allocatable it would default to address zero hence the orig absolute 
> relocations
> would work for most ports. However in our case we force it allocatable in 
> kernel
> builds and thus it is relocated to 0x8abcdefg, thus the usage of absolute
> relocations ends up generating the invalid reference.
> 
> Thus it seems we do need the special section relative reference.
> 
> Thanks a bunch for clarifying.

It seems like it would be easier to change the kernel to use .eh_frame
rather than adding relocation types and changing the tool chain...


r~

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