Re: [PATCH] configure: detect --cpu=mipsisa64r6

[Paolo Bonzini <pbonzini@redhat.com>]

On Wed, Jun 19, 2024 at 2:49 PM Thomas Huth <thuth@redhat.com> wrote:
>
> On 19/06/2024 13.46, Paolo Bonzini wrote:
> > Treat it as a MIPS64 machine.
>
> Where did you encounter it?

It is handled by "config.sub" (the GNU script to canonicalize target
triples). and is also in the list produced by "rustc --print
target-list" on Fedora 40. So it seems like something that could be
passed to --cpu.

The argument to --cpu, plus an autodetected OS, is also as close as we
can get to building the tuple for "cargo --target
CPU-MACHINE-OS-VARIANT".

> > Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> > ---
> >   configure | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/configure b/configure
> > index d0703ea279d..3669eec86e5 100755
> > --- a/configure
> > +++ b/configure
> > @@ -452,7 +452,7 @@ case "$cpu" in
> >       linux_arch=loongarch
> >       ;;
> >
> > -  mips64*)
> > +  mips64*|mipsisa64*)
>
> Maybe simply switch to mips*64*) ?

Not sure if it's a good idea, since we know the exact prefixes.

Paolo