* solib.c (elf_locate_base): New function to locate the address

	* solib.c (elf_locate_base):  New function to locate the address
	of the dynamic linker's runtime structure in the dynamic info section.
	* solib.c (locate_base):  Use it instead of iterating over the list
	of mapped address segments.
	* solib.c (look_for_base, bfd_lookup_symbol):  Removed, no longer
	necessary.