[Bug gas/18401] MIPS -march=xlp results in inconsistent ISA markers

[matthew.fortune at imgtec dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18401

--- Comment #3 from Matthew Fortune <matthew.fortune at imgtec dot com> ---
(In reply to Nick Clifton from comment #2)
> Hi Matthew,
> 
>   Will something like the uploaded patch work ?  (Caveat: I am not a MIPS
> expert, so there may be something that I have missed).
> 
> Cheers
>   Nick

Thanks for the patch but I'm afraid it will just shift the problem from XLP to
XLR. There is also a second inconsistency that can occur relating to the
octeon+ architecture. The problem cases appear to be where we have an
architecture that has extended the base and either not been represented in the
e_flags (octeon+) or the same architecture extension has been used on cores
with different base architectures (xlp vs xlr). I think I need to go through
and evaluate all the architectures and see whether there are any other problem
cases. I am half tempted to just relax the linker check for the problem cases
but if they can be fixed properly then that would be best of course.

I'm going to try and dig through this in the next day or so but may get
side-tracked.

thanks,
Matthew

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