add indirect_symbol to mach-o port.

bfd:

	* mach-o.c (bfd_mach_o_count_indirect_symbols): New.
	(bfd_mach_o_build_dysymtab_command): Populate indirect symbol table.
	* mach-o.h (bfd_mach_o_asymbol): Move declaration to start of the
	file. (bfd_mach_o_section): Add indirect_syms field.

gas:

	* config/obj-macho.c (obj_mach_o_set_symbol_qualifier): Switch off
	lazy when the symbol is private_extern.
	(obj_mach_o_indirect_sym): New type.
	(obj_mach_o_indirect_symbol): New.
	(mach_o_pseudo_table): Use obj_mach_o_indirect_symbol.
	(obj_macho_frob_label): Adjust to avoid adding bsyms for locals.
	(obj_macho_frob_label): Likewise.  Adjust external and comm
	symbol tests.
	(obj_mach_o_set_indirect_symbols): New.
	(obj_mach_o_frob_file_after_relocs): New.
	*config/obj-macho.h (obj_frob_file_after_relocs): Define.
	(obj_mach_o_frob_file_after_relocs): Declare.

include/mach-o:

	* loader.h (BFD_MACH_O_INDIRECT_SYM_LOCAL): New.
	(BFD_MACH_O_INDIRECT_SYM_ABS): New

gas/testsuite:

	* gas/mach-o/dysymtab-2.d: New.
	* gas/mach-o/err-syms-4.s: New.
	* gas/mach-o/err-syms-5.s: New.
	* gas/mach-o/err-syms-6.s: New.
	* gas/mach-o/symbols-6-64.d: New.
	* gas/mach-o/symbols-6-64.s: New.
	* gas/mach-o/symbols-6.d: New.
	* gas/mach-o/symbols-6.s: New.

1 files changed, 19 insertions, 15 deletions

diff --git a/bfd/mach-o.h b/bfd/mach-o.h
index ca810a03f37..7f54961c7f3 100644
--- a/bfd/mach-o.h
+++ b/bfd/mach-o.h
@@ -42,6 +42,18 @@ typedef struct bfd_mach_o_header
 }
 bfd_mach_o_header;
 
+typedef struct bfd_mach_o_asymbol
+{
+  /* The actual symbol which the rest of BFD works with.  */
+  asymbol symbol;
+
+  /* Mach-O symbol fields.  */
+  unsigned char n_type;
+  unsigned char n_sect;
+  unsigned short n_desc;
+}
+bfd_mach_o_asymbol;
+
 #define BFD_MACH_O_SEGNAME_SIZE 16
 #define BFD_MACH_O_SECTNAME_SIZE 16
 
@@ -64,6 +76,12 @@ typedef struct bfd_mach_o_section
   /* Corresponding bfd section.  */
   asection *bfdsection;
 
+  /* An array holding the indirect symbols for this section.
+     NULL values indicate local symbols.
+     The number of symbols is determined from the section size and type.  */
+
+  bfd_mach_o_asymbol **indirect_syms;
+
   /* Simply linked list.  */
   struct bfd_mach_o_section *next;
 }
@@ -105,26 +123,12 @@ typedef struct bfd_mach_o_reloc_info
 }
 bfd_mach_o_reloc_info;
 
-typedef struct bfd_mach_o_asymbol
-{
-  /* The actual symbol which the rest of BFD works with.  */
-  asymbol symbol;
-
-  /* Mach-O symbol fields.  */
-  unsigned char n_type;
-  unsigned char n_sect;
-  unsigned short n_desc;
-}
-bfd_mach_o_asymbol;
-
 /* The symbol table is sorted like this:
  (1) local.
 	(otherwise in order of generation)
  (2) external defined
 	(sorted by name)
- (3) external undefined
-	(sorted by name)
- (4) common
+ (3) external undefined / common
 	(sorted by name)
 */