On Tue, 25 Feb 2003 14:18:38 +0100 (MET)
"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> wrote:
> On Tue, 25 Feb 2003, Yoichi Yuasa wrote:
>
> > binutils -mcpu option for VR4100 series
> >
> > 2.10:
> > * VR4100
> > * vr4100
> > * 4100
> > * mips64vr4100
> > * r4100
> >
> > 2.11:
> > 2.12:
> > 2.13:
> > * VR4100
> > * 4100
> > * mips64vr4100
> > * r4100
>
> They are case insensitive, which is why the redundancy was removed.
>
> > In addition for the VR4100 series, there is an -m4100 option.
>
> Which is deprecated and scheduled for removal in the future.
>
> > As for us, it is best to use the following option.
> >
> > GCCFLAGS += -mcpu=r4100 -mips2 -Wa,-m4100,--trap
> >
> > Would you apply this patch to CVS?
>
> The trunk version of gas only supports "-m4100" and "vr4100" (but leading
> letters are dropped if no exact match happens) for "-mcpu=" (which is also
> deprecated), "-march=" and "-mtune=". Additionally it supports "vr4111",
> "vr4111", "vr4120", "vr4130" and "vr4181". I suggest you go for:
>
> GCCFLAGS += -mcpu=vr4100 -mips2 -Wa,--trap
>
> for now as other options may trigger an error depending on the version of
> tools used ("-mcpu=" is passed down to gas).
With the following versions.
I cannot compile with an instruction peculiar to VR4100, if there is no -m4100.
GNU ld version 2.12.90.0.1 20020307
GNU ld version 2.12.1
We need to add -m4100 option.
GCCFLAGS += -mcpu=vr4100 -mips2 -Wa,-m4100,--trap
> I think we'll soon have to cook up a run-time gcc check for what is
> accepted and use the "-march=" and "-mtune=" options preferably and
> failing that, revert to legacy options like above.
Thanks,
Yoichi
