* nlmconv.c (main): For PowerPC, call powerpc_build_stubs and

	* nlmconv.c (main): For PowerPC, call powerpc_build_stubs and
	powerpc_resolve_stubs.  Use __GOT0, not __toc_start.  Handle it if
	the start and end symbols are not in the text section.
	(struct powerpc_stub): New struct definition.
	(powerpc_stubs, powerpc_stub_insns): New static variables.
	(powerpc_initial_got_size): New static variable.
	(powerpc_build_stubs): New function.
	(powerpc_resolve_stubs): New function.
	(powerpc_mangle_relocs): Clear extraneous data in .got section.
	Rearrange reloc handling to handle ELF relocs that are not
	partial_inplace.  Resolve PC relative relocs.