[llvm] r219976 - Initial version of Go bindings.

[David Blaikie]

On Tue, Oct 21, 2014 at 2:05 PM, Peter Collingbourne <peter at pcc.me.uk>
wrote:

> On Mon, Oct 20, 2014 at 04:38:07PM -0700, David Blaikie wrote:
> > On Mon, Oct 20, 2014 at 4:37 PM, David Blaikie <dblaikie at gmail.com>
> wrote:
> >
> > >
> > >
> > > On Mon, Oct 20, 2014 at 4:14 PM, Peter Collingbourne <peter at pcc.me.uk>
> > > wrote:
> > >
> > >> How are you invoking the compiler in your build (i.e. what are the
> values
> > >> of config.host_cc and config.host_cxx in $builddir/test/lit.site.cfg)?
> > >>
> > >
> > > config.host_cc = "/usr/local/google/home/blaikie/install/bin/clang "
> > > config.host_cxx = "/usr/local/google/home/blaikie/install/bin/clang++ "
> > >
> >
> > Oh, and those are symlinks:
> >
> > lrwxrwxrwx 1 blaikie eng 9 Sep 18 20:07
> > /usr/local/google/home/blaikie/install/bin/clang -> clang-3.4*
> > lrwxrwxrwx 1 blaikie eng 5 Oct 10 11:06
> > /usr/local/google/home/blaikie/install/bin/clang++ -> clang*
>
> I debugged this off-list with David and we found the source of his
> problem: the
> presence of the -gsplit-dwarf flag in the output of "llvm-config
> --cppflags"
> causes one part of the Go toolchain ("cgo") to blow up, as it does not
> understand split DWARF.
>
> Regardless of whether cgo supports split DWARF, that flag should not appear
> in llvm-config's output. I'll see what I can do about removing it.
>

(+echristo as he added the split-dwarf support & might have some opinions
on how it should/shouldn't interact with llvm-config --cppflags)


>
> Thanks,
> --
> Peter
>
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