* plugin.h (plugin_active_plugins_p): New prototype.

(is_ir_dummy_bfd): Delete prototype.
	* plugin.c: Fix formatting issues.
	(is_ir_dummy_bfd): Make static.
	(plugin_active_plugins_p): New function.
	* ldfile.c (ldfile_try_open_bfd): Use it to save work if no plugins
	are loaded.  Always close file descriptor after claim handler returns.
	* ldmain.c (add_archive_element): Likewise.

ld/ChangeLog

@@ -1,3 +1,14 @@
+2010-11-05  Dave Korn  <dave.korn.cygwin@gmail.com>
+
+	* plugin.h (plugin_active_plugins_p): New prototype.
+	(is_ir_dummy_bfd): Delete prototype.
+	* plugin.c: Fix formatting issues.
+	(is_ir_dummy_bfd): Make static.
+	(plugin_active_plugins_p): New function.
+	* ldfile.c (ldfile_try_open_bfd): Use it to save work if no plugins
+	are loaded.  Always close file descriptor after claim handler returns.
+	* ldmain.c (add_archive_element): Likewise.
+
 2010-11-05  Alan Modra  <amodra@gmail.com>
 
 	* ldlang.c (lang_add_section): Distinguish ELF treatment of NOLOAD.

ld/ldfile.c

@@ -312,7 +312,8 @@ success:
      bfd_object that it sets the bfd's arch and mach, which
      will be needed when and if we want to bfd_create a new
      one using this one as a template.  */
-  if (bfd_check_format (entry->the_bfd, bfd_object))
+  if (bfd_check_format (entry->the_bfd, bfd_object)
+	&& plugin_active_plugins_p ())
     {
       int fd = open (attempt, O_RDONLY | O_BINARY);
       if (fd >= 0)
@@ -330,6 +331,8 @@ success:
 	  if (plugin_call_claim_file (&file, &claimed))
 	    einfo (_("%P%F: %s: plugin reported error claiming file\n"),
 	      plugin_error_plugin ());
+	  /* fd belongs to us, not the plugin; but we don't need it.  */
+	  close (fd);
 	  if (claimed)
 	    {
 	      /* Discard the real file's BFD and substitute the dummy one.  */
@@ -340,10 +343,9 @@ success:
 	    }
 	  else
 	    {
-	      /* If plugin didn't claim the file, we don't need the fd or the
-	         dummy bfd.  Can't avoid speculatively creating it, alas.  */
+	      /* If plugin didn't claim the file, we don't need the dummy
+	         bfd.  Can't avoid speculatively creating it, alas.  */
 	      bfd_close_all_done (file.handle);
-	      close (fd);
 	      entry->claimed = FALSE;
 	    }
 	}

ld/ldmain.c

@@ -809,7 +809,7 @@ add_archive_element (struct bfd_link_info *info,
      BFD, but we still want to output the original BFD filename.  */
   orig_input = *input;
 #ifdef ENABLE_PLUGINS
-  if (bfd_my_archive (abfd) != NULL)
+  if (bfd_my_archive (abfd) != NULL && plugin_active_plugins_p ())
     {
       /* We must offer this archive member to the plugins to claim.  */
       int fd = open (bfd_my_archive (abfd)->filename, O_RDONLY | O_BINARY);
@@ -831,6 +831,8 @@ add_archive_element (struct bfd_link_info *info,
 	  if (plugin_call_claim_file (&file, &claimed))
 	    einfo (_("%P%F: %s: plugin reported error claiming file\n"),
 	      plugin_error_plugin ());
+	  /* fd belongs to us, not the plugin; but we don't need it.  */
+	  close (fd);
 	  if (claimed)
 	    {
 	      /* Substitute the dummy BFD.  */
@@ -843,7 +845,6 @@ add_archive_element (struct bfd_link_info *info,
 	    {
 	      /* Abandon the dummy BFD.  */
 	      bfd_close_all_done (file.handle);
-	      close (fd);
 	      input->claimed = FALSE;
 	    }
 	}

ld/plugin.c

@@ -172,13 +172,15 @@ plugin_error_p (void)
 }
 
 /* Return name of plugin which caused an error if any.  */
-const char *plugin_error_plugin (void)
+const char *
+plugin_error_plugin (void)
 {
   return error_plugin ? error_plugin : _("<no plugin>");
 }
 
 /* Handle -plugin arg: find and load plugin, or return error.  */
-int plugin_opt_plugin (const char *plugin)
+int
+plugin_opt_plugin (const char *plugin)
 {
   plugin_t *newplug;
 
@@ -201,7 +203,8 @@ int plugin_opt_plugin (const char *plugin)
 
 /* Accumulate option arguments for last-loaded plugin, or return
    error if none.  */
-int plugin_opt_plugin_arg (const char *arg)
+int
+plugin_opt_plugin_arg (const char *arg)
 {
   plugin_arg_t *newarg;
 
@@ -241,8 +244,8 @@ plugin_get_ir_dummy_bfd (const char *name, bfd *srctemplate)
   return abfd;
 }
 
-/* Check if the BFD is an IR dummy.  */
-bfd_boolean
+/* Check if the BFD passed in is an IR dummy object file.  */
+static bfd_boolean
 is_ir_dummy_bfd (const bfd *abfd)
 {
   size_t namlen;
@@ -615,8 +618,17 @@ set_tv_plugin_args (plugin_t *plugin, struct ld_plugin_tv *tv)
   tv->tv_u.tv_val = 0;
 }
 
+/* Return true if any plugins are active this run.  Only valid
+   after options have been processed.  */
+bfd_boolean
+plugin_active_plugins_p (void)
+{
+  return plugins_list != NULL;
+}
+
 /* Load up and initialise all plugins after argument parsing.  */
-int plugin_load_plugins (void)
+int
+plugin_load_plugins (void)
 {
   struct ld_plugin_tv *my_tv;
   unsigned int max_args = 0;

ld/plugin.h

@@ -33,6 +33,10 @@ extern int plugin_opt_plugin (const char *plugin);
    error if none.  */
 extern int plugin_opt_plugin_arg (const char *arg);
 
+/* Return true if any plugins are active this run.  Only valid
+   after options have been processed.  */
+extern bfd_boolean plugin_active_plugins_p (void);
+
 /* Load up and initialise all plugins after argument parsing.  */
 extern int plugin_load_plugins (void);
 
@@ -56,9 +60,6 @@ extern int plugin_call_cleanup (void);
    add_symbols hook has been called so that it can be read when linking.  */
 extern bfd *plugin_get_ir_dummy_bfd (const char *name, bfd *template);
 
-/* Check if the BFD passed in is an IR dummy object file.  */
-extern bfd_boolean is_ir_dummy_bfd (const bfd *abfd);
-
 /* Notice-symbol bfd linker callback hook.  */
 extern bfd_boolean plugin_notice (struct bfd_link_info *info,
 		const char *name, bfd *abfd, asection *section,