* som.c (compare_subspaces): New function to sort subspaces by

	* som.c (compare_subspaces): New function to sort subspaces by
	their location in the object file.
	(setup_sections): When computing the index for each subspace,
	handle case where setup_sections reads the subspaces in a
	different order that they appear in the object file.
	(som_is_space): Also examine the output section for the containing
	section.
	(som_is_subspace, som_is_container): Likewise.
	(som_begin_writing): Don't prepare or write fixups here.  When
	writing the symbol strings, use the unsorted symbol table.
	(som_write_object_contents): Don't write the symbol table here.
	(som_finish_writing): Prepare and write the fixups here.  Likewise
	for the symbol table.
	(som_bfd_derive_misc_symbol_info): Undefined symbols always have
	type SS_UNSAT regardless of BSF_EXPORT.
	(som_set_reloc_info): Unpack and attach argument location
	information for R_PCREL_CALL and R_ABS_CALL relocations.