[Bug lto/48094] ld: warning: section has unexpectedly large size errors in objc/obj-c++ lto

["iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48094

--- Comment #5 from Iain Sandoe <iains at gcc dot gnu.org> 2011-03-14 09:40:07 UTC ---
(In reply to comment #3)
> (In reply to comment #2)
> 
> > (b) the second needs more checking - the tests pass on darwin9 (and darwin10
> > with 3.2.5 - last time I tried)
> 
> it looks like the .lazy_reference to . objc_class_name_myRootObject is getting
> dropped somewhere;
> in this instance, because the code is self-contained, it works OK (when ld
> doesn't barf).
> 
> ... in other cases in the test-suite, the only external object is usually
> "Object" which is in libobjc and therefore it also works.
> 
> I have an idea about getting rid of the TARGET_ASM method to make these
> references and use a real variable to carry the information (just make it
> zero-sized, and use that + a meta-data tag to emit the efficient asm).   I was
> intending to make that a stage-1 investigation -- but perhaps it might warrant
> trying sooner.

this is now PR48109 -- and a separate issue, please use PR48094 to track the
image_info issue.