Merge with current Utah code:

	Merge with current Utah code:
        * config/tc-hppa.c (pa_space): Do not report an error for a .space
        directive which does not define a "well-known" space and does
        not include a space number as an argument.

        * config/tc-hppa.c (pa_def_subspaces): Correct initialization of the
        "defined", "loadable", "code_only" and "space_index" fields.
        (pa_def_spaces): Correct initialization of the "spnum", "defined",
        and "private" fields.

	* config/tc-hppa.c (hppa_fix_struct): Delete unnecessary fix_fixP and
        fx_next fields.
        (hppa_find_hppa_fix): Delete unnecessary function.  Fix all
        callers to get HPPA fixup information from the tc_fix_data field
        in the GAS fixup.
        (hppa_fix_root): Delete unnecessary variable.
        (fix_new_hppa): Attach HPPA fixup data to the GAS fixup.

        * config/tc-hppa.c (pa_set_start_symbol); Delete unwanted
        function.  Fix all callers.
        (subspace_dictionary_chain): Delete unused ssd_start_sym field.

        * config/tc-hppa.c (hppa_fix_adjustable): New function to determine
        if a particular fixup is adjustable.

        * config/tc-hppa.c (log2): Renamed from is_power_of_2.  Fix all
        callers. Now returns log2 (N) for positive N which are an exact
        power of two or -1 for an error.

        * config/tc-hppa.c (pa_callinfo): Range check values provided for
        ENTRY_GR, ENTRY_FR and ENTRY_SR.  Properly adjust vaues before
        inserting them into the unwind table.

        * config/tc-hppa.c (NEEDS_FIXUP): Delete definition and all references.
        (hppa_gen_reloc_type): New object format dependent macro.
        (pa_ip): Delete tons of code which was either OBJ_SOM or OBJ_ELF
        conditional.  The code can (and will) be shared between SOM & ELF
        formats in the near future.
        (cons_fix_new_hppa, md_apply_fix_1): Likewise.
        (pa_build_unwind_subspace, process_exit, pa_exit): Likewise.
        (tc_gen_reloc): Use hppa_gen_reloc rather than an object format
        specific call.

        * config/tc-hppa.c (pa_comm): Set the segment for a common symbol
        to bfd_und_section.

        * config/tc-hppa.c (pa_big_cons): Delete function and its
        declaration.  All callers changed to use pa_cons.

        From Pete Hoogenboom:
        * config/tc-hppa.c (md_atof): Return a NULL on success rather than
        an empty string.