2012-02-21 Tristan Gingold <gingold@adacore.com>

2012-02-21  Tristan Gingold  <gingold@adacore.com>

	* config/tc-i386.h (OBJ_MACH_O): New section.
	(TC_FORCE_RELOCATION): Use obj_mach_o_force_reloc.
	(TC_FORCE_RELOCATION_SUB_SAME): New
	(TC_FORCE_RELOCATION_SUB_LOCAL): New.
	(TC_VALIDATE_FIX_SUB): New.
	* frags.h (struct frag): OBJ_FRAG_TYPE, new field.
	* symbols.c (colon): obj_frob_colon: New hook.
	* write.c (write_object_file): md_pre_relax_hook, new
	hook.
	* config/obj-macho.c (obj_mach_o_frob_colon): New.
	(obj_mach_o_frob_label): Record sub-section labels.
	(obj_mach_o_frob_symbol): Rename from obj_macho_frob_symbol.
	(obj_mach_o_set_subsections): New.
	(obj_mach_o_pre_relax_hook): New.
	(obj_mach_o_in_different_subsection): New.
	(obj_mach_o_force_reloc_sub_same): New.
	(obj_mach_o_force_reloc_sub_local): New.
	(obj_mach_o_force_reloc): New.
	* config/obj-macho.h (OBJ_SYMFIELD_TYPE): New.
	(obj_frob_colon): New Define.
	(obj_mach_o_frob_label): Renamed.
	(obj_mach_o_frob_symbol): Renamed.
	(OBJ_FRAG_TYPE): New.
	(obj_mach_o_in_different_subsection, obj_mach_o_force_reloc,
	 obj_mach_o_force_reloc_sub_same,
	 obj_mach_o_force_reloc_sub_local): New declarations.