Re: [Qemu-devel] [PATCH] gdbstub: allow byte swapping for reading/writing registers

[Peter Maydell]

On 14 January 2014 23:01, Alexander Graf <address@hidden> wrote:
>> Is the underlying issue here that we might have a CPU which is
>> in littleendian mode but in a QEMU executable compiled with
>> TARGET_WORDS_BIGENDIAN ?  (If so I can't help feeling that
>> the gdb stub is only the tip of the iceberg for things that might need
>> attention...)
>
> Yes, which is going to be the same problem you have for AArch64 :).
> LE vs BE is really just a register flip. The qemu binary is the same
> for both when you run system emulation mode.

Right, then I think we really need to look at the issue in a more
holistic fashion. You're essentially trying to make
TARGET_WORDS_BIGENDIAN irrelevant, which is a goal I
thoroughly approve of, but it's pretty thoroughly baked into various
parts of the codebase and I don't think it's going to be easy to
eradicate.

thanks
-- PMM