[binutils] Bump binutils to 2.20.1

binutils/ld/pe-dll.c

 /* Routines to help build PEI-format DLLs (Win32 etc)
    Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
    2008, 2009 Free Software Foundation, Inc.
    Written by DJ Delorie <dj@cygnus.com>
 
    This file is part of the GNU Binutils.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
@@ skipping 1330 matching lines @@
               if (!relocs[i]->howto->pc_relative
                   && relocs[i]->howto->type != pe_details->imagebase_reloc)
                 {
                   bfd_vma sym_vma;
                   struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr;
 
                   /* Don't create relocs for undefined weak symbols.  */ 
                   if (sym->flags == BSF_WEAK)
                     {
                       struct bfd_link_hash_entry *blhe
-                        = bfd_link_hash_lookup (info->hash, sym->name,
+                        = bfd_wrapped_link_hash_lookup (abfd, info, sym->name,
                                                 FALSE, FALSE, FALSE);
-                      if (!blhe || blhe->type != bfd_link_hash_defined)
-                        continue;                     
+                      if (blhe && blhe->type == bfd_link_hash_undefweak)
+                        {
+                          /* Check aux sym and see if it is defined or not. */
+                          struct coff_link_hash_entry *h, *h2;
+                          h = (struct coff_link_hash_entry *)blhe;
+                          if (h->symbol_class != C_NT_WEAK || h->numaux != 1)
+                            continue;
+                          h2 = h->auxbfd->tdata.coff_obj_data->sym_hashes
+                                                [h->aux->x_sym.x_tagndx.l];
+                          /* We don't want a base reloc if the aux sym is not
+                             found, undefined, or if it is the constant ABS
+                             zero default value.  (We broaden that slightly by
+                             not testing the value, just the section; there's
+                             no reason we'd want a reference to any absolute
+                             address to get relocated during rebasing).  */
+                          if (!h2 || h2->root.type == bfd_link_hash_undefined
+                                || h2->root.u.def.section == &bfd_abs_section)
+                            continue;
+                        }
+                      else if (!blhe || blhe->type != bfd_link_hash_defined)
+                        continue;
                     }
 
                   sym_vma = (relocs[i]->addend
                              + sym->value
                              + sym->section->vma
                              + sym->section->output_offset
                              + sym->section->output_section->vma);
                   reloc_data[total_relocs].vma = sec_vma + relocs[i]->address;
 
 #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift)
@@ skipping 1799 matching lines @@
   reloc_s->contents = reloc_d;
 }
 
 bfd_boolean
 pe_bfd_is_dll (bfd *abfd)
 {
   return (bfd_get_format (abfd) == bfd_object
           && obj_pe (abfd)
           && pe_data (abfd)->dll);
 }