backport: re PR target/48094 (ld: warning: section has unexpectedly large size errors...

backport: re PR target/48094 (ld: warning: section has unexpectedly large size errors in objc/obj-c++ lto)

2014-04-07  Dominique d'Humieres <dominiq@lps.ens.fr>

        Backport from mainline
        2013-09-14  Iain Sandoe <iains@gcc.gnu.org>

gcc:

	PR target/48094
	* config/darwin.c (darwin_objc2_section): Note if ObjC Metadata is seen.
	(darwin_objc1_section): Likewise.
	(darwin_file_end): Emit Image Info section when required.

gcc/c-family:

	PR target/48094
	* c.opt (fgnu-runtime, fnext-runtime, fobjc-abi-version,
	fobjc-gc, freplace-objc-classes): Accept for LTO.

gcc/objc:

	PR target/48094
	* objc-next-runtime-abi-01.c (generate_objc_image_info): Remove.
	(objc_generate_v1_next_metadata): Remove generation of ImageInfo.
	* objc-next-runtime-abi-02.c (generate_v2_objc_image_info): Remove.
	(objc_generate_v2_next_metadata): Remove generation of ImageInfo.

From-SVN: r209176