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).
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.
--
+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+--------------------------------------------------------------+
+ e-mail: macro@ds2.pg.gda.pl, PGP key available +
