gdb/ChangeLog
2013-03-01  Tiago Stürmer Daitx  <tdaitx@linux.vnet.ibm.com>

	* ppc-sysv-tdep.c (ppc64_sysv_abi_push_float): New function.
	(ppc64_sysv_abi_push_dummy_call): Handle complex arguments.
.
	Cleanup: remove unused - breakpoint, buildsym

	* breakpoint.c (parse_cond_to_aexpr): Remove unused 'old_chain'.
	(print_it_watchpoint): Remove unused 'bl'.
	(say_where): Remove unused 'uiout'.
	(bpstat_remove_breakpoint_callback): Remove unused 'uiout'.
	(bkpt_breakpoint_hit): Remove unused 'b'.
	(internal_bkpt_print_it): Remove unused 'uiout'.
	* buildsym.c (augment_type_symtab): Remove unused 'i'.

	Reference: http://sourceware.org/ml/gdb-patches/2013-03/msg01080.html
	Fix coff-pe-read.c to compile with Wunused.

	* coff-pe-read.c (add_pe_exported_sym): Remove unused 'dll_name_len'.
	(add_pe_forwarded_sym): Remove unused 'section', 'dll_name_len'.
	(read_pe_exported_syms): Remove unused 'exportix'.
	(pe_text_section_offset): Remove unused 'opthdr_ofs', 'num_entries',
	'export_rva', 'export_size', 'expptr', 'exp_funcbase', 'expdata',
	'erva', 'name_rvas', 'ordinals', 'nexp', 'ordbase', 'dll_name'.

	Reference: http://sourceware.org/ml/gdb-patches/2013-03/msg01081.html
	* dwarf2read.c (free_dwo_file): Add comment.
	(dwarf2_per_objfile_free): Unref dwp bfd.
Fix whitespace errors from last commit.
	* dwarf2read.c (struct dwarf2_per_cu_data): Move member
	type_unit_group ...
	(struct signatured_type): ... to here.
	(sig_type_ptr): New typedef.
	(type_unit_group): Delete member 't.first_cu'.  Move member 'tus'
	out of union 't'.  All uses updated.
	(dw2_get_file_names_reader): Assert not called for a type unit.
	(dw2_get_file_names): Assert not called for a type unit or type
	unit group.
	(build_type_psymtabs_reader): Assert called for a type unit.
	(build_type_psymtab_dependencies): Assert called for a type unit group.
daily update
	* dwarf2read.c (lookup_signatured_type_at_offset): Delete.
	(process_enumeration_scope): Simplify.
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