toolchain/gcc/4.4.0/gcc-4.3-pr31537.01.patch

   1 Index: gcc-4.3/gcc/varasm.c
   2 ===================================================================
   3 --- gcc-4.3/gcc/varasm.c        (revision 131820)
   4 +++ gcc-4.3/gcc/varasm.c        (working copy)
   5 @@ -5349,7 +5349,26 @@ assemble_alias (tree decl, tree target)
   6      do_assemble_alias (decl, target);
   7    else
   8      {
   9 -      alias_pair *p = VEC_safe_push (alias_pair, gc, alias_pairs, NULL);
  10 +      unsigned int i;
  11 +      alias_pair *p;
  12 +
  13 +      if (is_weakref && flag_unit_at_a_time)
  14 +       /* Do not insert duplicate weakrefs.  */
  15 +       for (i = 0; VEC_iterate (alias_pair, alias_pairs, i, p); i++)
  16 +         if (DECL_ASSEMBLER_NAME (p->decl) == DECL_ASSEMBLER_NAME (decl))
  17 +           {
  18 +             /* The last specified target is used.  */
  19 +             if (target != p->target)
  20 +               {
  21 +                 warning (OPT_Wattributes, "%q+D overriding symbol "
  22 +                          "%qs with %qs", decl,
  23 +                          IDENTIFIER_POINTER (p->target),
  24 +                          IDENTIFIER_POINTER (target));
  25 +                 p->target = target;
  26 +               }
  27 +             return;
  28 +           }
  29 +      p = VEC_safe_push (alias_pair, gc, alias_pairs, NULL);
  30        p->decl = decl;
  31        p->target = target;
  32      }