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Re: Request for testing/help for the LTO branch
On Wed, 28 Jan 2009, Rainer Orth wrote:
> Rafael Espindola writes:
>
> > > I suppose you mis-parsed my question: Solaris and IRIX *are* ELF targets
> > > (just not Linux, so using the system linker, not GNU ld). If I understand
> > > you correctly, they might just work (modulo bugs)?
> >
> > That should work. You still might need to extend the linker to
> > support IL in static libraries. We can work with normal .o with the
> > modified collect2 in the branch, but for archives we need linker
> > support.
>
> Ok, I see. Maybe we can extend Sun ld to handle that, given that the
> sources are now open via OpenSolaris.
>
> > > The only other target of interest to me is Tru64 UNIX, which uses ECOFF,
> > > not ELF. I don't know if that format is extensible enough to store the IL,
> > > but investigating that is low priority for me.
> >
> > I would suggest trying to use elf for the IL. For example, while
> > using plugins gold doesn't care what the *input* file format is.
>
> Unfortunately, gold doesn't even build on non-Linux targets: see PR
> gold/7024.
That actually appears to be a list of issues with non-Linux hosts, not
non-Linux targets.
I would certainly hope both LTO and gold should work on a wide range of
non-Linux hosts (if anyone cares to contribute patches for such support),
including non-ELF hosts, even though restricted to ELF targets at least in
the case of gold. libelf definitely works on MinGW and Solaris hosts.
--
Joseph S. Myers
joseph@codesourcery.com