[binutils-gdb] PowerPC64 --emit-relocs support for notoc stubs

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT 3d58e1fcfbedad71be7e539dfa2045ab2768f013 ***

Author: Alan Modra <amodra@gmail.com>
Branch: master
Commit: 3d58e1fcfbedad71be7e539dfa2045ab2768f013

PowerPC64 --emit-relocs support for notoc stubs

This patch uses the newly defined high-part REL16 relocs to emit
relocations on the notoc stubs as we already do for other stubs.

	* elf64-ppc.c (num_relocs_for_offset): New function.
	(emit_relocs_for_offset): New function.
	(use_global_in_relocs): New function, split out from..
	(ppc_build_one_stub): ..here.  Output relocations for notoc stubs.
	(ppc_size_one_stub): Calculate reloc count for notoc stubs.
	(ppc64_elf_size_stubs): Don't count undefined syms in stub_globals.