2003-05-07 H.J. Lu <hongjiu.lu@intel.com>

	* elflink.h (elf_link_check_versioned_symbol): Also handle the
	case that a DSO references a hidden symbol which may be
	satisfied by a versioned symbol in another DSO.
	(elf_link_output_extsym): Check versioned definition for hidden
	symbol referenced by a DSO.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 5767cdf..8944e3f 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,11 @@
+2003-05-07  H.J. Lu <hongjiu.lu@intel.com>
+
+       * elflink.h (elf_link_check_versioned_symbol): Also handle the
+       case that a DSO references a hidden symbol which may be
+       satisfied by a versioned symbol in another DSO.
+       (elf_link_output_extsym): Check versioned definition for hidden
+       symbol referenced by a DSO.
+
 2003-05-07  Nick Clifton  <nickc@redhat.com>
 
        * elf32-xstormy16.c (xstormy16_elf_howto_table): Reset

diff --git a/bfd/elflink.h b/bfd/elflink.h
index 0f590a4..ade717d 100644 (file)
--- a/bfd/elflink.h
+++ b/bfd/elflink.h
@@ -6230,21 +6230,45 @@ elf_link_sec_merge_syms (h, data)
 
 /* For DSOs loaded in via a DT_NEEDED entry, emulate ld.so in
    allowing an unsatisfied unversioned symbol in the DSO to match a
-   versioned symbol that would normally require an explicit version.  */
+   versioned symbol that would normally require an explicit version.
+   We also handle the case that a DSO references a hidden symbol
+   which may be satisfied by a versioned symbol in another DSO.  */
 
 static bfd_boolean
 elf_link_check_versioned_symbol (info, h)
      struct bfd_link_info *info;
      struct elf_link_hash_entry *h;
 {
-  bfd *undef_bfd = h->root.u.undef.abfd;
+  bfd *abfd;
   struct elf_link_loaded_list *loaded;
 
-  if ((undef_bfd->flags & DYNAMIC) == 0
-      || info->hash->creator->flavour != bfd_target_elf_flavour
-      || elf_dt_soname (undef_bfd) == NULL)
+  if (info->hash->creator->flavour != bfd_target_elf_flavour)
     return FALSE;
 
+  switch (h->root.type)
+    {
+    default:
+      abfd = NULL;
+      break;
+
+    case bfd_link_hash_undefined:
+    case bfd_link_hash_undefweak:
+      abfd = h->root.u.undef.abfd;
+      if ((abfd->flags & DYNAMIC) == 0 || elf_dt_soname (abfd) == NULL)
+       return FALSE;
+      break;
+
+    case bfd_link_hash_defined:
+    case bfd_link_hash_defweak:
+      abfd = h->root.u.def.section->owner;
+      break;
+
+    case bfd_link_hash_common:
+      abfd = h->root.u.c.p->section->owner;
+      break;
+    }
+  BFD_ASSERT (abfd != NULL);
+
   for (loaded = elf_hash_table (info)->loaded;
        loaded != NULL;
        loaded = loaded->next)
@@ -6264,7 +6288,7 @@ elf_link_check_versioned_symbol (info, h)
       input = loaded->abfd;
 
       /* We check each DSO for a possible hidden versioned definition.  */
-      if (input == undef_bfd
+      if (input == abfd
          || (input->flags & DYNAMIC) == 0
          || elf_dynversym (input) == 0)
        continue;
@@ -6416,7 +6440,8 @@ elf_link_output_extsym (h, data)
       && (h->elf_link_hash_flags
          & (ELF_LINK_FORCED_LOCAL | ELF_LINK_HASH_REF_DYNAMIC
             | ELF_LINK_DYNAMIC_DEF | ELF_LINK_DYNAMIC_WEAK))
-        == (ELF_LINK_FORCED_LOCAL | ELF_LINK_HASH_REF_DYNAMIC))
+        == (ELF_LINK_FORCED_LOCAL | ELF_LINK_HASH_REF_DYNAMIC)
+      && ! elf_link_check_versioned_symbol (finfo->info, h))
     {
       (*_bfd_error_handler)
        (_("%s: %s symbol `%s' in %s is referenced by DSO"),