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

[Andrew Cagney <cagney at gnu dot org>]

> 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?

Rather than define these macros, what about implementing a new target 
(inferior) vector that meets your needs?  This is what

> Is this not compatible
> with the multi-arch approach (I notice config/cpu/tx-cpu.h is not
> included for multi-arch builds).

The tm-cpu.h files are obsolete.  Instead things are implemented using 
an architecture (gdbarch) and target (inferior) vector.

You may also be interested in this:
http://sources.redhat.com/gdb/papers/multi-arch/real-multi-arch/

Andrew