add symbol qualifiers for mach-o to bfd/gas

bfd:

	* mach-o.c (bfd_mach_o_bfd_copy_private_symbol_data): Implement.
	(bfd_mach_o_write_symtab): Remove handling for indirect syms.
	(bfd_mach_o_primary_symbol_sort_key): Likewise.
	(bfd_mach_o_cf_symbols): Likewise.
	(bfd_mach_o_sort_symbol_table): Remove.
	(bfd_mach_o_mangle_symbols): Adjust arguments, remove handling
	for indirect and dysymtab counts.  Do the symbol sorting here.
	(bfd_mach_o_build_dysymtab_command): Count the symbol types here.
	Make the indirect symbols a TODO.
	(bfd_mach_o_build_commands): Adjust call to bfd_mach_o_mangle_symbols.
	(bfd_mach_o_make_empty_symbol): Specifically flag unset symbols with
	a non-zero value.
	(bfd_mach_o_read_symtab_symbol): Record the symbol index.
	(bfd_mach_o_read_symtab_symbol): Adjust recording of global status.
	* mach-o.h (mach_o_data_struct): Remove indirect and dysymtab entries.
	(IS_MACHO_INDIRECT): Remove.
	(SYM_MACHO_FIELDS_UNSET, SYM_MACHO_FIELDS_NOT_VALIDATED): New.

gas:

	* config/obj-macho.c (obj_mach_o_weak): Remove.
	(obj_mach_o_common_parse): Set symbol qualifiers.
	(LAZY, REFE): New macros.
	(obj_mach_o_symbol_type): New enum.
	(obj_mach_o_set_symbol_qualifier): New.
	(obj_mach_o_sym_qual): New.
	(mach_o_pseudo_table): Add symbol qualifiers, set indirect_symbol to
	a dummy function.
	(obj_mach_o_type_for_symbol): New.
	(obj_macho_frob_label): New.
	(obj_macho_frob_symbol): New.
	* config/obj-macho.h (S_SET_ALIGN): Amend temorary var name.
	(obj_frob_label, obj_macho_frob_label): Declare.
	(obj_frob_symbol, obj_macho_frob_symbol): Declare.

gas/testsuite:

	* gas/mach-o/err-syms-1.s: New.
	* gas/mach-o/err-syms-2.s: New.
	* gas/mach-o/err-syms-3.s: New.
	* gas/mach-o/symbols-2.d: New.
	* gas/mach-o/symbols-2.s: New.
	* gas/mach-o/symbols-3.s: New.
	* gas/mach-o/symbols-4.s: New.
	* gas/mach-o/symbols-5.d: New.
	* gas/mach-o/symbols-5.s: New.

1 files changed, 4 insertions, 14 deletions

diff --git a/bfd/mach-o.h b/bfd/mach-o.h
index 123edda..ca810a0 100644
--- a/bfd/mach-o.h
+++ b/bfd/mach-o.h
@@ -549,18 +549,6 @@ typedef struct mach_o_data_struct
   bfd_mach_o_symtab_command *symtab;
   bfd_mach_o_dysymtab_command *dysymtab;
 
-  /* Base values used for building the dysymtab for a single-module object.  */  
-  unsigned long nlocal;
-  unsigned long ndefext;
-  unsigned long nundefext;
-
-  /* If this is non-zero, then the pointer below is populated.  */
-  unsigned long nindirect;
-  /* A set of synthetic symbols representing the 'indirect' ones in the file.
-     These should be sorted (a) by the section they represent and (b) by the
-     order that they appear within each section.  */
-  asymbol **indirect_syms;
-
   /* A place to stash dwarf2 info for this bfd.  */
   void *dwarf2_find_line_info;
 
@@ -691,8 +679,10 @@ typedef struct bfd_mach_o_backend_data
 }
 bfd_mach_o_backend_data;
 
-/* Symbol type tests.  */
+/* Values used in symbol.udata.i, to signal that the mach-o-specific data in the
+   symbol are not yet set, or need validation (where this is possible).  */
 
-#define IS_MACHO_INDIRECT(x) (((x) & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_INDR)
+#define SYM_MACHO_FIELDS_UNSET ((bfd_vma) -1)
+#define SYM_MACHO_FIELDS_NOT_VALIDATED ((bfd_vma) -2)
 
 #endif /* _BFD_MACH_O_H_ */