Rework space/subspace handling in PA code to fully support

[deliverable/binutils-gdb.git] / gas / ChangeLog

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 Sat Oct 30 14:26:20 1993  Jeffrey A. Law  (law@snake.cs.utah.edu)
 
+       Rework space/subspace handling in PA code to fully support
+       SOM spaces/subspaces.
+       * config/tc-hppa.c (USE_ALIASES): New object-format dependent define
+       to control the use of space/subspace name aliases.
+       (update_subspace): Accept space chain entry for containing space
+       as a new parameter.  All callers changed.
+       (pa_get_label): Use current_space rather than pa_segment_to_space.
+       (pa_define_label): Likewise.
+       (pa_undefine_label): Likewise.
+       (md_begin): Change into the (possibly modified) text_section.
+       (pa_parse_space_stmt): Create a new segment/space if create_flag
+       is true, and the space name is not one of the two predefined spaces.
+       (pa_subspace): Use current_space rather than a lookup via 
+       pa_segment_to_space.  Reset BFD section flags as required by 
+       the .subspace directive.  Likewise for the section alignment.
+       Pass the current space to update_subspace and create_new_subspace.
+       (pa_spaces_begin): Only use space/subspace aliases if USE_ALIASES
+       is true.  When not using aliases, create a BFD section for each
+       subspace encountered.  When not using aliases replace the default
+       text, data, and bss segments with new ones.
+       (create_new_subspace): When not using aliases each subspace has a 
+       section/segment and subsegments are not needed, so set the subsegment
+       to zero. 
+
        * config/tc-hppa.c (pa_parse_space_stmt): If needed, call
        obj_set_section_attributes to pass space attributes to the 
        BFD backend.