Re: [Xen-devel] [PATCH v4 3/6] tools/dm_restrict: Ask QEMU to chroot

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

On Tue, Nov 06, 2018 at 10:53:48AM +0000, Paul Durrant wrote:
> Ok. The trace backend is set at build time in tools/Makefile:
> 
>         if $$source/scripts/tracetool.py --check-backend --backend log ; then 
> \
>                 enable_trace_backend='--enable-trace-backend=log'; 
>         elif $$source/scripts/tracetool.py --check-backend --backend stderr ; 
> then \
>                 enable_trace_backend='--enable-trace-backend=stderr'; \
>         else \
>                 enable_trace_backend='' ; \
>         fi ; \
> 
> and log appears to favoured. Is this still going to work with the
> chroot? We rely on the tracing in xen_platform to get log messages out
> of PV drivers.

log vs stderr are just different names for the same thing. "stderr"
doesn't exist anymore in recent version of QEMU and as been renamed
"log".

-- 
Anthony PERARD

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