Improve printing of lookup scopes

The scope of a new object should be printed earlier and when the scope
of an already loaded object is extended only the changes should be
printed.

ChangeLog

@@ -1,5 +1,12 @@
 2011-08-16  Ulrich Drepper  <[email protected]>
 
+	* elf/dl-open.c (_dl_show_scope): Take additional parameter which
+	specifies first scope to show.
+	(dl_open_worker): Update callers.  Move printing scope of new
+	object to before the relocation.
+	* rtld.c (dl_main): Update _dl_show_scope call.
+	* sysdeps/generic/ldsodefs.h: Update declaration.
+
 	* elf/dl-open.c (_dl_show_scope): Use _dl_debug_printf to generate the
 	string for the scope number.
 

elf/dl-open.c

@@ -288,6 +288,10 @@ dl_open_worker (void *a)
   r->r_state = RT_CONSISTENT;
   _dl_debug_state ();
 
+  /* Print scope information.  */
+  if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_SCOPES, 0))
+    _dl_show_scope (new, 0);
+
   /* Only do lazy relocation if `LD_BIND_NOW' is not set.  */
   int reloc_mode = mode & __RTLD_AUDIT;
   if (GLRO(dl_lazy))
@@ -407,7 +411,7 @@ dl_open_worker (void *a)
 
 	  /* Print scope information.  */
 	  if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_SCOPES, 0))
-	    _dl_show_scope (imap);
+	    _dl_show_scope (imap, cnt);
 	}
       /* Only add TLS memory if this object is loaded now and
 	 therefore is not yet initialized.  */
@@ -493,10 +497,6 @@ cannot load any more object with static TLS"));
   if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0))
     _dl_debug_printf ("opening file=%s [%lu]; direct_opencount=%u\n\n",
 		      new->l_name, new->l_ns, new->l_direct_opencount);
-
-  /* Print scope information.  */
-  if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_SCOPES, 0))
-    _dl_show_scope (new);
 }
 
 
@@ -634,12 +634,12 @@ no more namespaces available for dlmopen()"));
 
 
 void
-_dl_show_scope (struct link_map *l)
+_dl_show_scope (struct link_map *l, int from)
 {
   _dl_debug_printf ("object=%s [%lu]\n",
 		    *l->l_name ? l->l_name : rtld_progname, l->l_ns);
   if (l->l_scope != NULL)
-    for (int scope_cnt = 0; l->l_scope[scope_cnt] != NULL; ++scope_cnt)
+    for (int scope_cnt = from; l->l_scope[scope_cnt] != NULL; ++scope_cnt)
       {
 	_dl_debug_printf (" scope %u:", scope_cnt);
 

elf/rtld.c

@@ -2197,7 +2197,7 @@ ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
       _dl_debug_printf ("\nInitial object scopes\n");
 
       for (struct link_map *l = main_map; l != NULL; l = l->l_next)
-	_dl_show_scope (l);
+	_dl_show_scope (l, 0);
     }
 
   if (prelinked)

sysdeps/generic/ldsodefs.h

@@ -1106,7 +1106,7 @@ extern int _dl_addr_inside_object (struct link_map *l, const ElfW(Addr) addr)
      internal_function attribute_hidden;
 
 /* Show show of an object.  */
-extern void _dl_show_scope (struct link_map *new);
+extern void _dl_show_scope (struct link_map *new, int from);
 
 __END_DECLS