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Subject: Re: [Qemu-devel] linux-user: drop support for "unknown" host CPUs
 (ie hppa and m68k) ?
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To: Peter Maydell <peter.maydell@linaro.org>, QEMU Developers <qemu-devel@nongnu.org>
Cc: Riku Voipio <riku.voipio@iki.fi>, Laurent Vivier <Laurent@vivier.eu>

On 06/13/2016 02:26 AM, Peter Maydell wrote:
> Currently our configure script allows linux-user targets to be built
> for "unknown" host CPU architectures (which must be using the TCI
> interpreter). However, code like user-exec.c has host-architecture
> #ifdef ladders which in practice mean you can't build linux-user for
> an arbitrary host architecture. The only two host architectures which
> have code in user-exec.c but aren't recognised by configure are
> HPPA and m68k.
>
> I'd like to move to an "every supported host architecture has a
> linux-user/host/$(ARCH)/hostdep.h header" model (this fixes a problem
> in the code currently in master where make doesn't notice it needs to
> rebuild if a host arch moves from "using generic/" to "using $(ARCH)").
> Host architectures which we sort-of-but-don't support are an annoying
> corner case I'd like to be able to drop entirely, by either:
>  (1) just dropping the support outright

I'm ok with this.


r~