[binutils] Bump binutils to 2.20.1

binutils/bfd/dwarf2.c

 /* DWARF 2 support.
    Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
    2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
 
    Adapted from gdb/dwarf2read.c by Gavin Koch of Cygnus Solutions
    (gavin@cygnus.com).
 
    From the dwarf2read.c header:
    Adapted by Gary Funck (gary@intrepid.com), Intrepid Technology,
    Inc.  with support from Florida State University (under contract
@@ skipping 198 matching lines @@
   /* The DW_AT_comp_dir attribute.  */
   char *comp_dir;
 
   /* TRUE if there is a line number table associated with this comp. unit.  */
   int stmtlist;
 
   /* Pointer to the current comp_unit so that we can find a given entry
      by its reference.  */
   bfd_byte *info_ptr_unit;
 
+  /* Pointer to the start of the debug section, for DW_FORM_ref_addr.  */
+  bfd_byte *sec_info_ptr;
+
   /* The offset into .debug_line of the line number table.  */
   unsigned long line_offset;
 
   /* Pointer to the first child die for the comp unit.  */
   bfd_byte *first_child_die_ptr;
 
   /* The end of the comp unit.  */
   bfd_byte *end_ptr;
 
   /* The decoded line number, NULL if not yet decoded.  */
@@ skipping 1444 matching lines @@
 
   /* DW_FORM_ref_addr can reference an entry in a different CU. It
      is an offset from the .debug_info section, not the current CU.  */
   if (attr_ptr->form == DW_FORM_ref_addr)
     {
       /* We only support DW_FORM_ref_addr within the same file, so
          any relocations should be resolved already.  */
       if (!die_ref)
         abort ();
 
-      info_ptr = unit->stash->sec_info_ptr + die_ref;
+      info_ptr = unit->sec_info_ptr + die_ref;
     }
   else 
     info_ptr = unit->info_ptr_unit + die_ref;
   abbrev_number = read_unsigned_leb128 (abfd, info_ptr, &bytes_read);
   info_ptr += bytes_read;
 
   if (abbrev_number)
     {
       abbrev = lookup_abbrev (abbrev_number, unit->abbrevs);
       if (! abbrev)
@@ skipping 387 matching lines @@
   amt = sizeof (struct comp_unit);
   unit = (struct comp_unit *) bfd_zalloc (abfd, amt);
   unit->abfd = abfd;
   unit->version = version;
   unit->addr_size = addr_size;
   unit->offset_size = offset_size;
   unit->abbrevs = abbrevs;
   unit->end_ptr = end_ptr;
   unit->stash = stash;
   unit->info_ptr_unit = info_ptr_unit;
+  unit->sec_info_ptr = stash->sec_info_ptr;
 
   for (i = 0; i < abbrev->num_attrs; ++i)
     {
       info_ptr = read_attribute (&attr, &abbrev->attrs[i], unit, info_ptr);
 
       /* Store the data if it is of an attribute we want to keep in a
          partial symbol table.  */
       switch (attr.name)
         {
         case DW_AT_stmt_list:
@@ skipping 1200 matching lines @@
     free (stash->dwarf_abbrev_buffer);
   if (stash->dwarf_line_buffer)
     free (stash->dwarf_line_buffer);
   if (stash->dwarf_str_buffer)
     free (stash->dwarf_str_buffer);
   if (stash->dwarf_ranges_buffer)
     free (stash->dwarf_ranges_buffer);
   if (stash->info_ptr_memory)
     free (stash->info_ptr_memory);
 }