+/* Return TRUE and set *HIDE to TRUE if the versioned symbol is
+ hidden. Set *T_P to NULL if there is no match. */
+
+static bfd_boolean
+_bfd_elf_link_hide_versioned_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *h,
+ const char *version_p,
+ struct bfd_elf_version_tree **t_p,
+ bfd_boolean *hide)
+{
+ struct bfd_elf_version_tree *t;
+
+ /* Look for the version. If we find it, it is no longer weak. */
+ for (t = info->version_info; t != NULL; t = t->next)
+ {
+ if (strcmp (t->name, version_p) == 0)
+ {
+ size_t len;
+ char *alc;
+ struct bfd_elf_version_expr *d;
+
+ len = version_p - h->root.root.string;
+ alc = (char *) bfd_malloc (len);
+ if (alc == NULL)
+ return FALSE;
+ memcpy (alc, h->root.root.string, len - 1);
+ alc[len - 1] = '\0';
+ if (alc[len - 2] == ELF_VER_CHR)
+ alc[len - 2] = '\0';
+
+ h->verinfo.vertree = t;
+ t->used = TRUE;
+ d = NULL;
+
+ if (t->globals.list != NULL)
+ d = (*t->match) (&t->globals, NULL, alc);
+
+ /* See if there is anything to force this symbol to
+ local scope. */
+ if (d == NULL && t->locals.list != NULL)
+ {
+ d = (*t->match) (&t->locals, NULL, alc);
+ if (d != NULL
+ && h->dynindx != -1
+ && ! info->export_dynamic)
+ *hide = TRUE;
+ }
+
+ free (alc);
+ break;
+ }
+ }
+
+ *t_p = t;
+
+ return TRUE;
+}
+
+/* Return TRUE if the symbol H is hidden by version script. */
+
+bfd_boolean
+_bfd_elf_link_hide_sym_by_version (struct bfd_link_info *info,
+ struct elf_link_hash_entry *h)
+{
+ const char *p;
+ bfd_boolean hide = FALSE;
+ const struct elf_backend_data *bed
+ = get_elf_backend_data (info->output_bfd);
+
+ /* Version script only hides symbols defined in regular objects. */
+ if (!h->def_regular && !ELF_COMMON_DEF_P (h))
+ return TRUE;
+
+ p = strchr (h->root.root.string, ELF_VER_CHR);
+ if (p != NULL && h->verinfo.vertree == NULL)
+ {
+ struct bfd_elf_version_tree *t;
+
+ ++p;
+ if (*p == ELF_VER_CHR)
+ ++p;
+
+ if (*p != '\0'
+ && _bfd_elf_link_hide_versioned_symbol (info, h, p, &t, &hide)
+ && hide)
+ {
+ if (hide)
+ (*bed->elf_backend_hide_symbol) (info, h, TRUE);
+ return TRUE;
+ }
+ }
+
+ /* If we don't have a version for this symbol, see if we can find
+ something. */
+ if (h->verinfo.vertree == NULL && info->version_info != NULL)
+ {
+ h->verinfo.vertree
+ = bfd_find_version_for_sym (info->version_info,
+ h->root.root.string, &hide);
+ if (h->verinfo.vertree != NULL && hide)
+ {
+ (*bed->elf_backend_hide_symbol) (info, h, TRUE);
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+