Update.

* elf/dl-close.c: Handle failed loads which would have gone in the
	global scope correctly.

	* elf/testobj1.c: Include stdlib.h to get NULL defined.
	* elf/testobj2.c: Likewise.
	* elf/testobj3.c: Likewise.
	* elf/testobj4.c: Likewise.
	* elf/testobj5.c: Likewise.

	* iconvdata/sami-ws2.c: New file.

ChangeLog

@@ -1,9 +1,18 @@
 1999-01-20  Ulrich Drepper  <drepper@cygnus.com>
 
+	* elf/dl-close.c: Handle failed loads which would have gone in the
+	global scope correctly.
+
+	* elf/testobj1.c: Include stdlib.h to get NULL defined.
+	* elf/testobj2.c: Likewise.
+	* elf/testobj3.c: Likewise.
+	* elf/testobj4.c: Likewise.
+	* elf/testobj5.c: Likewise.
+
 	* iconvdata/Makefile (modules): Add SAMI-WS2 and ISO-IR-197.
 	* iconvdata/gconv-modules: Add entries for above charsets.
 	* iconvdata/iso-ir-197.c: New file.
-	* iconvdata/same-ws2.c: New file.
+	* iconvdata/sami-ws2.c: New file.
 
 	* sysdeps/unix/sysv/linux/vfork.c: Once again use generic version.
 

elf/dl-close.c

@@ -106,29 +106,35 @@ _dl_close (struct link_map *map)
 	      unsigned int cnt = _dl_main_searchlist->r_nlist;
 
 	      do
-		--cnt;
+		if (--cnt < 0)
+		  break;
 	      while (_dl_main_searchlist->r_list[cnt] != imap);
 
-	      while (++cnt < _dl_main_searchlist->r_nlist)
+	      if (cnt >= 0)
-		_dl_main_searchlist->r_list[cnt - 1]
-		  = _dl_main_searchlist->r_list[cnt];
-
-	      --_dl_main_searchlist->r_nlist;
-	      if (_dl_main_searchlist->r_nlist
-		  == _dl_initial_searchlist.r_nlist)
 		{
-		  /* All object dynamically loaded by the program are
+		  /* The object was already correctly registered.  */
-		     unloaded.  Free the memory allocated for the global
+		  while (++cnt < _dl_main_searchlist->r_nlist)
-		     scope variable.  */
+		    _dl_main_searchlist->r_list[cnt - 1]
-		  struct link_map **old = _dl_main_searchlist->r_list;
+		      = _dl_main_searchlist->r_list[cnt];
 
-		  /* Put the old map in.  */
+		  --_dl_main_searchlist->r_nlist;
-		  _dl_main_searchlist->r_list = _dl_initial_searchlist.r_list;
+		}
-		  /* Signal that the old map is used.  */
+	      else
-		  _dl_global_scope_alloc = 0;
+		{
-
+		  /* This can happen if loading was interrupted by something
-		  /* Now free the old map.  */
+		     like a missing symbol in the newly loaded objects.  In
-		  free (old);
+		     this case the object is already marked as global but
+		     `r_nlist' does not count it in.  The pointer is in the
+		     `r_list' array so we keep searching in the other
+		     direction.  */
+		  cnt = _dl_main_searchlist->r_nlist;
+		  while (_dl_main_searchlist->r_list[cnt] != imap)
+		    {
+		      ++cnt;
+		      /* Note that if _dl_global_scope_alloc is zero we
+			 should never come here in the first place.  */
+		      assert (cnt < _dl_global_scope_alloc);
+		    }
 		}
 	    }
 
@@ -186,6 +192,22 @@ _dl_close (struct link_map *map)
 
   free (list);
 
+  if (_dl_global_scope_alloc != 0
+      && _dl_main_searchlist->r_nlist == _dl_initial_searchlist.r_nlist)
+    {
+      /* All object dynamically loaded by the program are unloaded.  Free
+	 the memory allocated for the global scope variable.  */
+      struct link_map **old = _dl_main_searchlist->r_list;
+
+      /* Put the old map in.  */
+      _dl_main_searchlist->r_list = _dl_initial_searchlist.r_list;
+      /* Signal that the original map is used.  */
+      _dl_global_scope_alloc = 0;
+
+      /* Now free the old map.  */
+      free (old);
+    }
+
   /* Notify the debugger those objects are finalized and gone.  */
   _r_debug.r_state = RT_CONSISTENT;
   _dl_debug_state ();

elf/testobj1.c

@@ -1,4 +1,5 @@
 #include <dlfcn.h>
+#include <stdlib.h>
 
 int
 obj1func1 (int a __attribute__ ((unused)))

elf/testobj2.c

@@ -1,4 +1,5 @@
 #include <dlfcn.h>
+#include <stdlib.h>
 
 int
 obj2func1 (int a __attribute__ ((unused)))

elf/testobj3.c

@@ -1,4 +1,5 @@
 #include <dlfcn.h>
+#include <stdlib.h>
 
 int
 obj3func1 (int a __attribute__ ((unused)))

elf/testobj4.c

@@ -1,4 +1,5 @@
 #include <dlfcn.h>
+#include <stdlib.h>
 
 int
 obj4func1 (int a __attribute__ ((unused)))

elf/testobj5.c

@@ -1,4 +1,5 @@
 #include <dlfcn.h>
+#include <stdlib.h>
 
 int
 obj5func1 (int a __attribute__ ((unused)))