Customizing remote-sim.c on a multi-arch target

[Jon Beniston]

Hi,

I'm trying to customize remote-sim.c on a multi-arch target, what I'd
look to do is be able to define TARGET_REDEFINE_DEFAULT_OPS so I can
install hooks to support h/w watchpoints and async execution in my
simulator. Where should this macro be defined? Is this not compatible
with the multi-arch approach (I notice config/cpu/tx-cpu.h is not
included for multi-arch builds).

Cheers,
Jon