Re: [RFC PATCH v4 14/15] arm/Kconfig: Always select SEMIHOSTING when TCG is present

[Philippe Mathieu-Daudé]

On 19/1/23 19:50, Richard Henderson wrote:
> On 1/19/23 03:54, Fabiano Rosas wrote:
> > We are about to enable the build without TCG, so CONFIG_SEMIHOSTING
> > and CONFIG_ARM_COMPATIBLE_SEMIHOSTING cannot be unconditionally set in
> > default.mak anymore. So reflect the change in a Kconfig.
> >
> > Instead of using semihosting/Kconfig, use a target-specific file, so
> > that the change doesn't affect other architectures which might
> > implement semihosting in a way compatible with KVM.
> >
> > The selection from ARM_v7M needs to be removed to avoid a cycle during
> > parsing.
> >
> > Signed-off-by: Fabiano Rosas<farosas@suse.de>
>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
>
> > The linux-user build does not use Kconfig. Is it worth it to add
> > support to it? There's just the semihosting config so far.
>
> Probably not.

I hit this limitation last week trying to restrict libdecnumber to
powerpc targets.

Fabiano, do you see how this can be done easily?