various evax patches
[deliverable/binutils-gdb.git] / bfd / linker.c
index 1c4b8fe73cf7a1e0c738d637b72f31d2a028ffc6..1b48f199fe3c10445487383ce603bc74fb7009ca 100644 (file)
@@ -16,7 +16,7 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #include "bfd.h"
 #include "sysdep.h"
@@ -406,9 +406,6 @@ SUBSUBSECTION
        file at the end of <<NAME(aout,final_link)>>.
 */
 
-static struct bfd_hash_entry *generic_link_hash_newfunc
-  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
-          const char *));
 static boolean generic_link_read_symbols
   PARAMS ((bfd *));
 static boolean generic_link_add_symbols
@@ -424,6 +421,7 @@ static boolean generic_link_check_archive_element
 static boolean generic_link_add_symbol_list
   PARAMS ((bfd *, struct bfd_link_info *, bfd_size_type count, asymbol **,
           boolean collect));
+static bfd *hash_entry_bfd PARAMS ((struct bfd_link_hash_entry *));
 static void set_symbol_from_hash
   PARAMS ((asymbol *, struct bfd_link_hash_entry *));
 static boolean generic_add_output_symbol
@@ -455,10 +453,7 @@ _bfd_link_hash_newfunc (entry, table, string)
     ret = ((struct bfd_link_hash_entry *)
           bfd_hash_allocate (table, sizeof (struct bfd_link_hash_entry)));
   if (ret == (struct bfd_link_hash_entry *) NULL)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return NULL;
-    }
+    return NULL;
 
   /* Call the allocation method of the superclass.  */
   ret = ((struct bfd_link_hash_entry *)
@@ -518,6 +513,88 @@ bfd_link_hash_lookup (table, string, create, copy, follow)
   return ret;
 }
 
+/* Look up a symbol in the main linker hash table if the symbol might
+   be wrapped.  This should only be used for references to an
+   undefined symbol, not for definitions of a symbol.  */
+
+struct bfd_link_hash_entry *
+bfd_wrapped_link_hash_lookup (abfd, info, string, create, copy, follow)
+     bfd *abfd;
+     struct bfd_link_info *info;
+     const char *string;
+     boolean create;
+     boolean copy;
+     boolean follow;
+{
+  if (info->wrap_hash != NULL)
+    {
+      const char *l;
+
+      l = string;
+      if (*l == bfd_get_symbol_leading_char (abfd))
+       ++l;
+
+#undef WRAP
+#define WRAP "__wrap_"
+
+      if (bfd_hash_lookup (info->wrap_hash, l, false, false) != NULL)
+       {
+         char *n;
+         struct bfd_link_hash_entry *h;
+
+         /* This symbol is being wrapped.  We want to replace all
+             references to SYM with references to __wrap_SYM.  */
+
+         n = (char *) bfd_malloc (strlen (l) + sizeof WRAP + 1);
+         if (n == NULL)
+           return NULL;
+
+         /* Note that symbol_leading_char may be '\0'.  */
+         n[0] = bfd_get_symbol_leading_char (abfd);
+         n[1] = '\0';
+         strcat (n, WRAP);
+         strcat (n, l);
+         h = bfd_link_hash_lookup (info->hash, n, create, true, follow);
+         free (n);
+         return h;
+       }
+
+#undef WRAP
+
+#undef REAL
+#define REAL "__real_"
+
+      if (*l == '_'
+         && strncmp (l, REAL, sizeof REAL - 1) == 0
+         && bfd_hash_lookup (info->wrap_hash, l + sizeof REAL - 1,
+                             false, false) != NULL)
+       {
+         char *n;
+         struct bfd_link_hash_entry *h;
+
+         /* This is a reference to __real_SYM, where SYM is being
+             wrapped.  We want to replace all references to __real_SYM
+             with references to SYM.  */
+
+         n = (char *) bfd_malloc (strlen (l + sizeof REAL - 1) + 2);
+         if (n == NULL)
+           return NULL;
+
+         /* Note that symbol_leading_char may be '\0'.  */
+         n[0] = bfd_get_symbol_leading_char (abfd);
+         n[1] = '\0';
+         strcat (n, l + sizeof REAL - 1);
+         h = bfd_link_hash_lookup (info->hash, n, create, true, follow);
+         free (n);
+         return h;
+       }
+
+#undef REAL
+    }
+
+  return bfd_link_hash_lookup (info->hash, string, create, copy, follow);
+}
+
 /* Traverse a generic link hash table.  The only reason this is not a
    macro is to do better type checking.  This code presumes that an
    argument passed as a struct bfd_hash_entry * may be caught as a
@@ -553,8 +630,8 @@ bfd_link_add_undef (table, h)
 \f
 /* Routine to create an entry in an generic link hash table.  */
 
-static struct bfd_hash_entry *
-generic_link_hash_newfunc (entry, table, string)
+struct bfd_hash_entry *
+_bfd_generic_link_hash_newfunc (entry, table, string)
      struct bfd_hash_entry *entry;
      struct bfd_hash_table *table;
      const char *string;
@@ -568,10 +645,7 @@ generic_link_hash_newfunc (entry, table, string)
     ret = ((struct generic_link_hash_entry *)
           bfd_hash_allocate (table, sizeof (struct generic_link_hash_entry)));
   if (ret == (struct generic_link_hash_entry *) NULL)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return NULL;
-    }
+    return NULL;
 
   /* Call the allocation method of the superclass.  */
   ret = ((struct generic_link_hash_entry *)
@@ -597,14 +671,11 @@ _bfd_generic_link_hash_table_create (abfd)
   struct generic_link_hash_table *ret;
 
   ret = ((struct generic_link_hash_table *)
-        malloc (sizeof (struct generic_link_hash_table)));
-  if (!ret)
-      {
-       bfd_set_error (bfd_error_no_memory);
-       return (struct bfd_link_hash_table *) NULL;
-      }
+        bfd_alloc (abfd, sizeof (struct generic_link_hash_table)));
+  if (ret == NULL)
+    return (struct bfd_link_hash_table *) NULL;
   if (! _bfd_link_hash_table_init (&ret->root, abfd,
-                                  generic_link_hash_newfunc))
+                                  _bfd_generic_link_hash_newfunc))
     {
       free (ret);
       return (struct bfd_link_hash_table *) NULL;
@@ -633,10 +704,7 @@ generic_link_read_symbols (abfd)
        return false;
       abfd->outsymbols = (asymbol **) bfd_alloc (abfd, symsize);
       if (abfd->outsymbols == NULL && symsize != 0)
-       {
-         bfd_set_error (bfd_error_no_memory);
-         return false;
-       }
+       return false;
       symcount = bfd_canonicalize_symtab (abfd, abfd->outsymbols);
       if (symcount < 0)
        return false;
@@ -770,10 +838,7 @@ archive_hash_newfunc (entry, table, string)
     ret = ((struct archive_hash_entry *)
           bfd_hash_allocate (table, sizeof (struct archive_hash_entry)));
   if (ret == (struct archive_hash_entry *) NULL)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return NULL;
-    }
+    return NULL;
 
   /* Call the allocation method of the superclass.  */
   ret = ((struct archive_hash_entry *)
@@ -867,7 +932,7 @@ _bfd_generic_link_add_archive_symbols (abfd, info, checkfn)
       /* An empty archive is a special case.  */
       if (bfd_openr_next_archived_file (abfd, (bfd *) NULL) == NULL)
        return true;
-      bfd_set_error (bfd_error_no_symbols);
+      bfd_set_error (bfd_error_no_armap);
       return false;
     }
 
@@ -1121,27 +1186,27 @@ generic_link_check_archive_element (abfd, info, pneeded, collect)
             attached to symbfd to ensure that it is in a BFD which
             will be linked in.  */
          h->type = bfd_link_hash_common;
+         h->u.c.p =
+           ((struct bfd_link_hash_common_entry *)
+            bfd_hash_allocate (&info->hash->table,
+                               sizeof (struct bfd_link_hash_common_entry)));
+         if (h->u.c.p == NULL)
+           return false;
 
          size = bfd_asymbol_value (p);
          h->u.c.size = size;
-         if (h->u.c.size != size)
-           {
-             /* The size did not fit in the bitfield.  */
-             bfd_set_error (bfd_error_bad_value);
-             return false;
-           }
 
          power = bfd_log2 (size);
          if (power > 4)
            power = 4;
-         h->u.c.alignment_power = power;
+         h->u.c.p->alignment_power = power;
 
          if (p->section == bfd_com_section_ptr)
-           h->u.c.section = bfd_make_section_old_way (symbfd, "COMMON");
+           h->u.c.p->section = bfd_make_section_old_way (symbfd, "COMMON");
          else
-           h->u.c.section = bfd_make_section_old_way (symbfd,
-                                                      p->section->name);
-         h->u.c.section->flags = SEC_ALLOC;
+           h->u.c.p->section = bfd_make_section_old_way (symbfd,
+                                                         p->section->name);
+         h->u.c.p->section->flags = SEC_ALLOC;
        }
       else
        {
@@ -1196,16 +1261,21 @@ generic_link_add_symbol_list (abfd, info, symbol_count, symbols, collect)
          struct generic_link_hash_entry *h;
 
          name = bfd_asymbol_name (p);
-         if ((p->flags & BSF_INDIRECT) != 0
-             || bfd_is_ind_section (p->section))
-           string = bfd_asymbol_name ((asymbol *) p->value);
-         else if ((p->flags & BSF_WARNING) != 0)
+         if (((p->flags & BSF_INDIRECT) != 0
+              || bfd_is_ind_section (p->section))
+             && pp + 1 < ppend)
+           {
+             pp++;
+             string = bfd_asymbol_name (*pp);
+           }
+         else if ((p->flags & BSF_WARNING) != 0
+                  && pp + 1 < ppend)
            {
              /* The name of P is actually the warning string, and the
-                value is actually a pointer to the symbol to warn
-                about.  */
+                next symbol is the one to warn about.  */
              string = name;
-             name = bfd_asymbol_name ((asymbol *) p->value);
+             pp++;
+             name = bfd_asymbol_name (*pp);
            }
          else
            string = NULL;
@@ -1217,6 +1287,17 @@ generic_link_add_symbol_list (abfd, info, symbol_count, symbols, collect)
                  (struct bfd_link_hash_entry **) &h)))
            return false;
 
+         /* If this is a constructor symbol, and the linker didn't do
+             anything with it, then we want to just pass the symbol
+             through to the output file.  This will happen when
+             linking with -r.  */
+         if ((p->flags & BSF_CONSTRUCTOR) != 0
+             && (h == NULL || h->root.type == bfd_link_hash_new))
+           {
+             p->udata.p = NULL;
+             continue;
+           }
+
          /* Save the BFD symbol so that we don't lose any backend
             specific information that may be attached to it.  We only
             want this one if it gives more information than the
@@ -1310,13 +1391,13 @@ enum link_action
 static const enum link_action link_action[8][8] =
 {
   /* current\prev    new    undef  undefw def    defw   com    indr   warn  */
-  /* UNDEF_ROW         */  {UND,   NOACT, NOACT, REF,   REF,   NOACT, REFC,  WARNC },
-  /* UNDEFW_ROW        */  {WEAK,  WEAK,  NOACT, REF,   REF,   NOACT, REFC,  WARNC },
+  /* UNDEF_ROW         */  {UND,   NOACT, UND,   REF,   REF,   NOACT, REFC,  WARNC },
+  /* UNDEFW_ROW        */  {WEAK,  NOACT, NOACT, REF,   REF,   NOACT, REFC,  WARNC },
   /* DEF_ROW   */  {DEF,   DEF,   DEF,   MDEF,  DEF,   CDEF,  MDEF,  CYCLE },
   /* DEFW_ROW  */  {DEFW,  DEFW,  DEFW,  NOACT, NOACT, NOACT, NOACT, CYCLE },
   /* COMMON_ROW        */  {COM,   COM,   COM,   CREF,  CREF,  BIG,   CREF,  WARNC },
   /* INDR_ROW  */  {IND,   IND,   IND,   MDEF,  IND,   CIND,  MIND,  CYCLE },
-  /* WARN_ROW   */  {MWARN, WARN,  WARN,  CWARN, CWARN, WARN,  CWARN, CYCLE },
+  /* WARN_ROW   */  {MWARN, WARN,  WARN,  CWARN, CWARN, WARN,  CWARN, MWARN },
   /* SET_ROW   */  {SET,   SET,   SET,   SET,   SET,   SET,   CYCLE, CYCLE }
 };
 
@@ -1343,6 +1424,30 @@ static const enum link_action link_action[8][8] =
    Adding an entry to a set does not count as a reference to a set,
    and no warning is issued (SET_ROW/warn).  */
 
+/* Return the BFD in which a hash entry has been defined, if known.  */
+
+static bfd *
+hash_entry_bfd (h)
+     struct bfd_link_hash_entry *h;
+{
+  while (h->type == bfd_link_hash_warning)
+    h = h->u.i.link;
+  switch (h->type)
+    {
+    default:
+      return NULL;
+    case bfd_link_hash_undefined:
+    case bfd_link_hash_undefweak:
+      return h->u.undef.abfd;
+    case bfd_link_hash_defined:
+    case bfd_link_hash_defweak:
+      return h->u.def.section->owner;
+    case bfd_link_hash_common:
+      return h->u.c.p->section->owner;
+    }
+  /*NOTREACHED*/
+}
+
 /* Add a symbol to the global hash table.
    ABFD is the BFD the symbol comes from.
    NAME is the name of the symbol.
@@ -1401,13 +1506,13 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
     row = DEF_ROW;
 
   if (hashp != NULL && *hashp != NULL)
-    {
-      h = *hashp;
-      BFD_ASSERT (strcmp (h->root.string, name) == 0);
-    }
+    h = *hashp;
   else
     {
-      h = bfd_link_hash_lookup (info->hash, name, true, copy, false);
+      if (row == UNDEF_ROW || row == UNDEFW_ROW)
+       h = bfd_wrapped_link_hash_lookup (abfd, info, name, true, copy, false);
+      else
+       h = bfd_link_hash_lookup (info->hash, name, true, copy, false);
       if (h == NULL)
        {
          if (hashp != NULL)
@@ -1416,11 +1521,13 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
        }
     }
 
-  if (info->notice_hash != (struct bfd_hash_table *) NULL
-      && (bfd_hash_lookup (info->notice_hash, name, false, false)
-         != (struct bfd_hash_entry *) NULL))
+  if (info->notice_all
+      || (info->notice_hash != (struct bfd_hash_table *) NULL
+         && (bfd_hash_lookup (info->notice_hash, name, false, false)
+             != (struct bfd_hash_entry *) NULL)))
     {
-      if (! (*info->callbacks->notice) (info, name, abfd, section, value))
+      if (! (*info->callbacks->notice) (info, h->root.string, abfd, section,
+                                       value))
        return false;
     }
 
@@ -1460,15 +1567,15 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
             previously common.  */
          BFD_ASSERT (h->type == bfd_link_hash_common);
          if (! ((*info->callbacks->multiple_common)
-                (info, name,
-                 h->u.c.section->owner, bfd_link_hash_common, h->u.c.size,
+                (info, h->root.string,
+                 h->u.c.p->section->owner, bfd_link_hash_common, h->u.c.size,
                  abfd, bfd_link_hash_defined, (bfd_vma) 0)))
            return false;
          /* Fall through.  */
        case DEF:
        case DEFW:
          {
-           enum bfd_link_order_type oldtype;
+           enum bfd_link_hash_type oldtype;
 
            /* Define a symbol.  */
            oldtype = h->type;
@@ -1523,7 +1630,7 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
                        if (! ((*info->callbacks->constructor)
                               (info,
                                c == 'I' ? true : false,
-                               name, abfd, section, value)))
+                               h->root.string, abfd, section, value)))
                          return false;
                      }
                  }
@@ -1537,13 +1644,14 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
          if (h->type == bfd_link_hash_new)
            bfd_link_add_undef (info->hash, h);
          h->type = bfd_link_hash_common;
+         h->u.c.p =
+           ((struct bfd_link_hash_common_entry *)
+            bfd_hash_allocate (&info->hash->table,
+                               sizeof (struct bfd_link_hash_common_entry)));
+         if (h->u.c.p == NULL)
+           return false;
+
          h->u.c.size = value;
-         if (h->u.c.size != value)
-           {
-             /* The size did not fit in the bitfield.  */
-             bfd_set_error (bfd_error_bad_value);
-             return false;
-           }
 
          /* Select a default alignment based on the size.  This may
              be overridden by the caller.  */
@@ -1553,7 +1661,7 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
            power = bfd_log2 (value);
            if (power > 4)
              power = 4;
-           h->u.c.alignment_power = power;
+           h->u.c.p->alignment_power = power;
          }
 
          /* The section of a common symbol is only used if the common
@@ -1568,16 +1676,17 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
              handling.  */
          if (section == bfd_com_section_ptr)
            {
-             h->u.c.section = bfd_make_section_old_way (abfd, "COMMON");
-             h->u.c.section->flags = SEC_ALLOC;
+             h->u.c.p->section = bfd_make_section_old_way (abfd, "COMMON");
+             h->u.c.p->section->flags = SEC_ALLOC;
            }
          else if (section->owner != abfd)
            {
-             h->u.c.section = bfd_make_section_old_way (abfd, section->name);
-             h->u.c.section->flags = SEC_ALLOC;
+             h->u.c.p->section = bfd_make_section_old_way (abfd,
+                                                           section->name);
+             h->u.c.p->section->flags = SEC_ALLOC;
            }
          else
-           h->u.c.section = section;
+           h->u.c.p->section = section;
          break;
 
        case REF:
@@ -1592,8 +1701,8 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
             two sizes.  */
          BFD_ASSERT (h->type == bfd_link_hash_common);
          if (! ((*info->callbacks->multiple_common)
-                (info, name,
-                 h->u.c.section->owner, bfd_link_hash_common, h->u.c.size,
+                (info, h->root.string,
+                 h->u.c.p->section->owner, bfd_link_hash_common, h->u.c.size,
                  abfd, bfd_link_hash_common, value)))
            return false;
          if (value > h->u.c.size)
@@ -1607,7 +1716,7 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
              power = bfd_log2 (value);
              if (power > 4)
                power = 4;
-             h->u.c.alignment_power = power;
+             h->u.c.p->alignment_power = power;
            }
          break;
 
@@ -1625,7 +1734,7 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
            else
              obfd = NULL;
            if (! ((*info->callbacks->multiple_common)
-                  (info, name, obfd, h->type, (bfd_vma) 0,
+                  (info, h->root.string, obfd, h->type, (bfd_vma) 0,
                    abfd, bfd_link_hash_common, value)))
              return false;
          }
@@ -1666,8 +1775,8 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
              break;
 
            if (! ((*info->callbacks->multiple_definition)
-                  (info, name, msec->owner, msec, mval, abfd, section,
-                   value)))
+                  (info, h->root.string, msec->owner, msec, mval, abfd,
+                   section, value)))
              return false;
          }
          break;
@@ -1676,8 +1785,8 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
          /* Create an indirect symbol from an existing common symbol.  */
          BFD_ASSERT (h->type == bfd_link_hash_common);
          if (! ((*info->callbacks->multiple_common)
-                (info, name,
-                 h->u.c.section->owner, bfd_link_hash_common, h->u.c.size,
+                (info, h->root.string,
+                 h->u.c.p->section->owner, bfd_link_hash_common, h->u.c.size,
                  abfd, bfd_link_hash_indirect, (bfd_vma) 0)))
            return false;
          /* Fall through.  */
@@ -1688,8 +1797,8 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
 
            /* STRING is the name of the symbol we want to indirect
               to.  */
-           inh = bfd_link_hash_lookup (info->hash, string, true, copy,
-                                       false);
+           inh = bfd_wrapped_link_hash_lookup (abfd, info, string, true,
+                                               copy, false);
            if (inh == (struct bfd_link_hash_entry *) NULL)
              return false;
            if (inh->type == bfd_link_hash_new)
@@ -1724,7 +1833,10 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
          /* Issue a warning and cycle.  */
          if (h->u.i.warning != NULL)
            {
-             if (! (*info->callbacks->warning) (info, h->u.i.warning))
+             if (! (*info->callbacks->warning) (info, h->u.i.warning,
+                                                h->root.string, abfd,
+                                                (asection *) NULL,
+                                                (bfd_vma) 0))
                return false;
              /* Only issue a warning once.  */
              h->u.i.warning = NULL;
@@ -1746,7 +1858,9 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
 
        case WARN:
          /* Issue a warning.  */
-         if (! (*info->callbacks->warning) (info, string))
+         if (! (*info->callbacks->warning) (info, string, h->root.string,
+                                            hash_entry_bfd (h),
+                                            (asection *) NULL, (bfd_vma) 0))
            return false;
          break;
 
@@ -1758,7 +1872,10 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
             ensure this.  */
          if (h->next != NULL || info->hash->undefs_tail == h)
            {
-             if (! (*info->callbacks->warning) (info, string))
+             if (! (*info->callbacks->warning) (info, string, h->root.string,
+                                                hash_entry_bfd (h),
+                                                (asection *) NULL,
+                                                (bfd_vma) 0))
                return false;
              break;
            }
@@ -1770,27 +1887,33 @@ _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value,
 
            /* STRING is the warning to give.  */
            sub = ((struct bfd_link_hash_entry *)
-                  bfd_hash_allocate (&info->hash->table,
-                                     sizeof (struct bfd_link_hash_entry)));
-           if (!sub)
-             {
-               bfd_set_error (bfd_error_no_memory);
-               return false;
-             }
+                  ((*info->hash->table.newfunc)
+                   ((struct bfd_hash_entry *) NULL, &info->hash->table,
+                    h->root.string)));
+           if (sub == NULL)
+             return false;
            *sub = *h;
-           h->type = bfd_link_hash_warning;
-           h->u.i.link = sub;
+           sub->type = bfd_link_hash_warning;
+           sub->u.i.link = h;
            if (! copy)
-             h->u.i.warning = string;
+             sub->u.i.warning = string;
            else
              {
                char *w;
 
                w = bfd_hash_allocate (&info->hash->table,
                                       strlen (string) + 1);
+               if (w == NULL)
+                 return false;
                strcpy (w, string);
-               h->u.i.warning = w;
+               sub->u.i.warning = w;
              }
+
+           bfd_hash_replace (&info->hash->table,
+                             (struct bfd_hash_entry *) h,
+                             (struct bfd_hash_entry *) sub);
+           if (hashp != NULL)
+             *hashp = sub;
          }
          break;
        }
@@ -1817,6 +1940,12 @@ _bfd_generic_final_link (abfd, info)
   abfd->symcount = 0;
   outsymalloc = 0;
 
+  /* Mark all sections which will be included in the output file.  */
+  for (o = abfd->sections; o != NULL; o = o->next)
+    for (p = o->link_order_head; p != NULL; p = p->next)
+      if (p->type == bfd_indirect_link_order)
+       p->u.indirect.section->linker_mark = true;
+
   /* Build the output symbol table.  */
   for (sub = info->input_bfds; sub != (bfd *) NULL; sub = sub->link_next)
     if (! _bfd_generic_link_output_symbols (abfd, sub, info, &outsymalloc))
@@ -1860,12 +1989,9 @@ _bfd_generic_final_link (abfd, info)
                                                       input_section);
                  if (relsize < 0)
                    return false;
-                 relocs = (arelent **) malloc ((size_t) relsize);
+                 relocs = (arelent **) bfd_malloc ((size_t) relsize);
                  if (!relocs && relsize != 0)
-                   {
-                     bfd_set_error (bfd_error_no_memory);
-                     return false;
-                   }
+                   return false;
                  symbols = _bfd_generic_link_get_symbols (input_bfd);
                  reloc_count = bfd_canonicalize_reloc (input_bfd,
                                                        input_section,
@@ -1873,7 +1999,8 @@ _bfd_generic_final_link (abfd, info)
                                                        symbols);
                  if (reloc_count < 0)
                    return false;
-                 BFD_ASSERT (reloc_count == input_section->reloc_count);
+                 BFD_ASSERT ((unsigned long) reloc_count
+                             == input_section->reloc_count);
                  o->reloc_count += reloc_count;
                  free (relocs);
                }
@@ -1885,10 +2012,7 @@ _bfd_generic_final_link (abfd, info)
                                           (o->reloc_count
                                            * sizeof (arelent *))));
              if (!o->orelocation)
-               {
-                 bfd_set_error (bfd_error_no_memory);
-                 return false;
-               }
+               return false;
              o->flags |= SEC_RELOC;
              /* Reset the count so that it can be used as an index
                 when putting in the output relocs.  */
@@ -1944,16 +2068,10 @@ generic_add_output_symbol (output_bfd, psymalloc, sym)
        *psymalloc = 124;
       else
        *psymalloc *= 2;
-      if (output_bfd->outsymbols == (asymbol **) NULL)
-       newsyms = (asymbol **) malloc (*psymalloc * sizeof (asymbol *));
-      else
-       newsyms = (asymbol **) realloc (output_bfd->outsymbols,
-                                       *psymalloc * sizeof (asymbol *));
+      newsyms = (asymbol **) bfd_realloc (output_bfd->outsymbols,
+                                         *psymalloc * sizeof (asymbol *));
       if (newsyms == (asymbol **) NULL)
-       {
-         bfd_set_error (bfd_error_no_memory);
-         return false;
-       }
+       return false;
       output_bfd->outsymbols = newsyms;
     }
 
@@ -2029,9 +2147,30 @@ _bfd_generic_link_output_symbols (output_bfd, input_bfd, info, psymalloc)
          || bfd_is_com_section (bfd_get_section (sym))
          || bfd_is_ind_section (bfd_get_section (sym)))
        {
-         h = _bfd_generic_link_hash_lookup (_bfd_generic_hash_table (info),
-                                            bfd_asymbol_name (sym),
-                                            false, false, true);
+         if (sym->udata.p != NULL)
+           h = (struct generic_link_hash_entry *) sym->udata.p;
+         else if ((sym->flags & BSF_CONSTRUCTOR) != 0)
+           {
+             /* This case normally means that the main linker code
+                 deliberately ignored this constructor symbol.  We
+                 should just pass it through.  This will screw up if
+                 the constructor symbol is from a different,
+                 non-generic, object file format, but the case will
+                 only arise when linking with -r, which will probably
+                 fail anyhow, since there will be no way to represent
+                 the relocs in the output format being used.  */
+             h = NULL;
+           }
+         else if (bfd_is_und_section (bfd_get_section (sym)))
+           h = ((struct generic_link_hash_entry *)
+                bfd_wrapped_link_hash_lookup (output_bfd, info,
+                                              bfd_asymbol_name (sym),
+                                              false, false, true));
+         else
+           h = _bfd_generic_link_hash_lookup (_bfd_generic_hash_table (info),
+                                              bfd_asymbol_name (sym),
+                                              false, false, true);
+
          if (h != (struct generic_link_hash_entry *) NULL)
            {
              /* Force all references to this symbol to point to
@@ -2055,13 +2194,18 @@ _bfd_generic_link_output_symbols (output_bfd, input_bfd, info, psymalloc)
                case bfd_link_hash_undefweak:
                  sym->flags |= BSF_WEAK;
                  break;
+               case bfd_link_hash_indirect:
+                 h = (struct generic_link_hash_entry *) h->root.u.i.link;
+                 /* fall through */
                case bfd_link_hash_defined:
                  sym->flags |= BSF_GLOBAL;
+                 sym->flags &=~ BSF_CONSTRUCTOR;
                  sym->value = h->root.u.def.value;
                  sym->section = h->root.u.def.section;
                  break;
                case bfd_link_hash_defweak:
                  sym->flags |= BSF_WEAK;
+                 sym->flags &=~ BSF_CONSTRUCTOR;
                  sym->value = h->root.u.def.value;
                  sym->section = h->root.u.def.section;
                  break;
@@ -2074,7 +2218,7 @@ _bfd_generic_link_output_symbols (output_bfd, input_bfd, info, psymalloc)
                      sym->section = bfd_com_section_ptr;
                    }
                  /* We do not set the section of the symbol to
-                    h->root.u.c.section.  That value was saved so
+                    h->root.u.c.p->section.  That value was saved so
                     that we would know where to allocate the symbol
                     if it was defined.  In this case the type is
                     still bfd_link_hash_common, so we did not define
@@ -2086,10 +2230,11 @@ _bfd_generic_link_output_symbols (output_bfd, input_bfd, info, psymalloc)
 
       /* This switch is straight from the old code in
         write_file_locals in ldsym.c.  */
-      if (info->strip == strip_some
-         && (bfd_hash_lookup (info->keep_hash, bfd_asymbol_name (sym),
-                              false, false)
-             == (struct bfd_hash_entry *) NULL))
+      if (info->strip == strip_all
+         || (info->strip == strip_some
+             && (bfd_hash_lookup (info->keep_hash, bfd_asymbol_name (sym),
+                                  false, false)
+                 == (struct bfd_hash_entry *) NULL)))
        output = false;
       else if ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
        {
@@ -2152,6 +2297,11 @@ _bfd_generic_link_output_symbols (output_bfd, input_bfd, info, psymalloc)
       else
        abort ();
 
+      /* If this symbol is in a section which is not being included
+        in the output file, then we don't want to output the symbol.  */
+      if (sym->section->linker_mark == false)
+       output = false;
+
       if (output)
        {
          if (! generic_add_output_symbol (output_bfd, psymalloc, sym))
@@ -2175,8 +2325,22 @@ set_symbol_from_hash (sym, h)
   switch (h->type)
     {
     default:
-    case bfd_link_hash_new:
       abort ();
+      break;
+    case bfd_link_hash_new:
+      /* This can happen when a constructor symbol is seen but we are
+         not building constructors.  */
+      if (sym->section != NULL)
+       {
+         BFD_ASSERT ((sym->flags & BSF_CONSTRUCTOR) != 0);
+       }
+      else
+       {
+         sym->flags |= BSF_CONSTRUCTOR;
+         sym->section = bfd_abs_section_ptr;
+         sym->value = 0;
+       }
+      break;
     case bfd_link_hash_undefined:
       sym->section = bfd_und_section_ptr;
       sym->value = 0;
@@ -2237,10 +2401,7 @@ _bfd_generic_link_write_global_symbol (h, data)
     return true;
 
   if (h->sym != (asymbol *) NULL)
-    {
-      sym = h->sym;
-      BFD_ASSERT (strcmp (bfd_asymbol_name (sym), h->root.root.string) == 0);
-    }
+    sym = h->sym;
   else
     {
       sym = bfd_make_empty_symbol (wginfo->output_bfd);
@@ -2282,10 +2443,7 @@ _bfd_generic_reloc_link_order (abfd, info, sec, link_order)
 
   r = (arelent *) bfd_alloc (abfd, sizeof (arelent));
   if (r == (arelent *) NULL)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return false;
-    }
+    return false;
       
   r->address = link_order->offset;
   r->howto = bfd_reloc_type_lookup (abfd, link_order->u.reloc.p->reloc);
@@ -2302,9 +2460,10 @@ _bfd_generic_reloc_link_order (abfd, info, sec, link_order)
     {
       struct generic_link_hash_entry *h;
 
-      h = _bfd_generic_link_hash_lookup (_bfd_generic_hash_table (info),
+      h = ((struct generic_link_hash_entry *)
+          bfd_wrapped_link_hash_lookup (abfd, info,
                                         link_order->u.reloc.p->u.name,
-                                        false, false, true);
+                                        false, false, true));
       if (h == (struct generic_link_hash_entry *) NULL
          || ! h->written)
        {
@@ -2332,10 +2491,7 @@ _bfd_generic_reloc_link_order (abfd, info, sec, link_order)
       size = bfd_get_reloc_size (r->howto);
       buf = (bfd_byte *) bfd_zmalloc (size);
       if (buf == (bfd_byte *) NULL)
-       {
-         bfd_set_error (bfd_error_no_memory);
-         return false;
-       }
+       return false;
       rstat = _bfd_relocate_contents (r->howto, abfd,
                                      link_order->u.reloc.p->addend, buf);
       switch (rstat)
@@ -2386,10 +2542,7 @@ bfd_new_link_order (abfd, section)
   new = ((struct bfd_link_order *)
         bfd_alloc_by_size_t (abfd, sizeof (struct bfd_link_order)));
   if (!new)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return NULL;
-    }
+    return NULL;
 
   new->type = bfd_undefined_link_order;
   new->offset = 0;
@@ -2455,12 +2608,9 @@ default_fill_link_order (abfd, info, sec, link_order)
   BFD_ASSERT ((sec->flags & SEC_HAS_CONTENTS) != 0);
 
   size = (size_t) link_order->size;
-  space = (char *) malloc (size);
+  space = (char *) bfd_malloc (size);
   if (space == NULL && size != 0)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return false;
-    }
+    return false;
 
   fill = link_order->u.fill.value;
   for (i = 0; i < size; i += 2)
@@ -2511,7 +2661,11 @@ default_indirect_link_order (output_bfd, info, output_section, link_order,
         because somebody is attempting to link together different
         types of object files.  Handling this case correctly is
         difficult, and sometimes impossible.  */
-      abort ();
+      (*_bfd_error_handler)
+       ("Attempt to do relocateable link with %s input and %s output",
+        bfd_get_target (input_bfd), bfd_get_target (output_bfd));
+      bfd_set_error (bfd_error_wrong_format);
+      return false;
     }
 
   if (! generic_linker)
@@ -2553,6 +2707,10 @@ default_indirect_link_order (output_bfd, info, output_section, link_order,
                 generic_link_add_symbol_list.  */
              if (sym->udata.p != NULL)
                h = (struct bfd_link_hash_entry *) sym->udata.p;
+             else if (bfd_is_und_section (bfd_get_section (sym)))
+               h = bfd_wrapped_link_hash_lookup (output_bfd, info,
+                                                 bfd_asymbol_name (sym),
+                                                 false, false, true);
              else
                h = bfd_link_hash_lookup (info->hash,
                                          bfd_asymbol_name (sym),
@@ -2564,12 +2722,10 @@ default_indirect_link_order (output_bfd, info, output_section, link_order,
     }
 
   /* Get and relocate the section contents.  */
-  contents = (bfd_byte *) malloc (bfd_section_size (input_bfd, input_section));
+  contents = ((bfd_byte *)
+             bfd_malloc (bfd_section_size (input_bfd, input_section)));
   if (contents == NULL && bfd_section_size (input_bfd, input_section) != 0)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      goto error_return;
-    }
+    goto error_return;
   new_contents = (bfd_get_relocated_section_contents
                  (output_bfd, info, link_order, contents, info->relocateable,
                   _bfd_generic_link_get_symbols (input_bfd)));
@@ -2612,3 +2768,30 @@ _bfd_count_link_order_relocs (link_order)
 
   return c;
 }
+
+/*
+FUNCTION
+       bfd_link_split_section
+
+SYNOPSIS
+        boolean bfd_link_split_section(bfd *abfd, asection *sec);
+
+DESCRIPTION
+       Return nonzero if @var{sec} should be split during a
+       reloceatable or final link.
+
+.#define bfd_link_split_section(abfd, sec) \
+.       BFD_SEND (abfd, _bfd_link_split_section, (abfd, sec))
+.
+
+*/
+
+
+
+boolean
+_bfd_generic_link_split_section (abfd, sec)
+     bfd *abfd;
+     asection *sec;
+{
+  return false;
+}
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