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Re: altivec triplets: comments?
On Nov 7, 2001, Geoff Keating <geoffk@geoffk.org> wrote:
> Daniel commented that
>> For instance, there aren't triplets for every new MIPS
>> processor supported by GCC
> but actually, when we build a special version of Linux for some weird
> MIPS ABI, a different triplet _is_ used. For instance,
> mips-linux-gnu
> mipsisa32-linux-gnu
In this case, wouldn't it make sense for powerpc-linux-gnualtivec be
spelled powerpcaltivec-linux-gnu? Otherwise, you wouldn't be able to
do something like powerpc-linux-gnulibc2.2.
I don't like powerpcaltivec much, but I think it's better than
gnualtivec, and, at least, there's more tradition to encode this kind
of change in the machine type than in the kernel-OS type.
powerpc-eabi* are more of an exception than a rule, IMO.
> and in fact there are a bunch of triplets for particular MIPS
> processors, although most of these don't change the ABI they just
> change the ISA.
Indeed. I don't recall any precedent to changing the triplet to
accomodate an ABI change. Most often, trailing text has been added to
indicate a change in object format, not ABI.
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
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