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Re: [ping] Re: [patch, powerpc] #undef LINK_EH_SPEC before defining it
On Fri, 4 Mar 2011, Alan Modra wrote:
> On Fri, Mar 04, 2011 at 08:38:18AM +0100, Jakub Jelinek wrote:
> > We see it because we add --no-add-needed to linux LINK_EH_SPECs.
>
> OK. Adding the #undef is then required..
>
> > Including freebsd-spec.h in a Linux configuration is certainly very
> > questionable and undefining LINK_EH_SPEC and other macros before defining
> > them would be certainly cleaner if the freebsd-spec.h include can't be just
> > killed.
>
> It's there for -mcall-freebsd. Take that away and you won't need
> freebsd-spec.h in powerpc-linux configs.
I'd certainly like to see the -mcall-* code that pretends to support
linking for one target using another target's compiler removed. That way
non-FreeBSD targets wouldn't need freebsd-spec.h, rs6000/sysv4.h wouldn't
need loads of specs that are really irrelevant to all but one target, and
you could probably make powerpc*-linux* use the toplevel gnu-user.h and
linux.h like almost all other Linux kernel targets. That these powerpc*
targets are doing things differently from all other architectures is a
nuisance when making changes across all targets (and I don't think what
they are doing is a useful intermediate step towards a multi-target
compiler).
--
Joseph S. Myers
joseph@codesourcery.com