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

[Ulrich Weigand]

Alexander Graf <address@hidden> wrote on 14.01.2014 23:40:20:
> On 14.01.2014, at 23:06, Thomas Falcon <address@hidden>
wrote:
>
> > This patch allows registers to be properly read from and written to
> > when using the gdbstub to debug a ppc guest running in little
> > endian mode.  It accomplishes this goal by byte swapping the values of
> > any registers only if the MSR:LE value is set and if the host machine
> > is big endian.
> >
> > Signed-off-by: Thomas Falcon<address@hidden>
>
> Uli, I thought ppc64le gdb wasn't finalized yet? What does the
> gdbstub layout look like? Are all fields the same as ppc64(be) but
> simply byte swapped - including FPR ones?

Hi Alex, yes, the layout of the gdb protocol packets should be the
same as on BE, except that all registers are byte-swapped.  This
includes FPRs and VPRs.

Bye,
Ulrich