* somread.c (som_symtab_read): Handle dynamic relocation for both

	* somread.c (som_symtab_read): Handle dynamic relocation for both
	text and data symbols.
	(som_symfile_offsets): If objfile is a shared library, then get
	text and data offsets from the shared library structures.
	* somsolib.c (som_solib_add): Copy the bfd pointer from the
	objfile rather than reopening the file again.
	(som_solib_section_offsets): New function.
	* somsolib.h (som_solib_section_offsets): Declare.