Update.

2000-08-15  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/generic/ldsodefs.h: Declare _nl_nloaded.
	* elf/Versions [ld] (GLIBC_2.2): Add _nl_nloaded.
	* elf/dl-support.c: Define _nl_nloaded.
	* elf/rtld.c: Likewise.  Increment _nl_nloaded for rtld itself.
	* elf/dl-object.c (_dl_new_object): Increment _nl_nloaded after adding
	object to global list.
	* elf/dl-close.c (_dl_close): Decrement _nl_nloaded after removing
	from _dl_loaded list.
	* elf/dl-load.c (_dl_map_object_from_fd): Likewise.
	* elf/dl-fini.c (_dl_fini): Use _nl_nloaded instead of computing the
	number here.

	* sysdeps/i386/fpu/fedisblxcpt.c (fedisableexcept): Mask, not
	unmask, exceptions.
	* sysdeps/i386/fpu/feenablxcpt.c (feenableexcept): Unmask, not mask,
	exceptions.
	Reported by Harvey J. Stein <hjstein@bfr.co.il>.

7 files changed, 20 insertions, 13 deletions

diff --git a/elf/Versions b/elf/Versions
index bb8b5f5..789774b 100644
--- a/elf/Versions
+++ b/elf/Versions
@@ -52,7 +52,7 @@ ld {
     _dl_dst_count; _dl_dst_substitute;
   }
   GLIBC_2.2 {
-    _dl_init; _dl_load_lock; _dl_argv;
+    _dl_init; _dl_load_lock; _dl_argv; _dl_nloaded;
 
     # this is defined in ld.so and overridden by libc
     _dl_init_first;
diff --git a/elf/dl-close.c b/elf/dl-close.c
index 6bdedd1..cbbb2ae 100644
--- a/elf/dl-close.c
+++ b/elf/dl-close.c
@@ -166,6 +166,7 @@ _dl_close (void *_map)
 	  else
 	    _dl_loaded = imap->l_next;
 #endif
+	  --_dl_nloaded;
 	  if (imap->l_next)
 	    imap->l_next->l_prev = imap->l_prev;
 
diff --git a/elf/dl-fini.c b/elf/dl-fini.c
index 9b103ae..c7d4ebc 100644
--- a/elf/dl-fini.c
+++ b/elf/dl-fini.c
@@ -42,29 +42,28 @@ _dl_fini (void)
      using `dlopen' there are possibly several other modules with its
      dependencies to be taken into account.  Therefore we have to start
      determining the order of the modules once again from the beginning.  */
-  unsigned int nloaded = 0;
   unsigned int i;
   struct link_map *l;
   struct link_map **maps;
 
-  /* First count how many objects are there.  */
-  for (l = _dl_loaded; l != NULL; l = l->l_next)
-    ++nloaded;
-
   /* XXX Could it be (in static binaries) that there is no object loaded?  */
-  assert (nloaded > 0);
+  assert (_dl_nloaded > 0);
 
   /* Now we can allocate an array to hold all the pointers and copy
      the pointers in.  */
-  maps = (struct link_map **) alloca (nloaded * sizeof (struct link_map *));
-  for (l = _dl_loaded, nloaded = 0; l != NULL; l = l->l_next)
+  maps = (struct link_map **) alloca (_dl_nloaded
+				      * sizeof (struct link_map *));
+  for (l = _dl_loaded, i = 0; l != NULL; l = l->l_next)
     {
-      maps[nloaded++] = l;
+      assert (i < _dl_nloaded);
+
+      maps[i++] = l;
 
       /* Bump l_opencount of all objects so that they are not dlclose()ed
 	 from underneath us.  */
       ++l->l_opencount;
     }
+  assert (i == _dl_nloaded);
 
   /* Now we have to do the sorting.  */
   for (l = _dl_loaded->l_next; l != NULL; l = l->l_next)
@@ -78,7 +77,7 @@ _dl_fini (void)
 
       /* Find all object for which the current one is a dependency and
 	 move the found object (if necessary) in front.  */
-      for (k = j + 1; k < nloaded; ++k)
+      for (k = j + 1; k < _dl_nloaded; ++k)
 	{
 	  struct link_map **runp;
 
@@ -129,7 +128,7 @@ _dl_fini (void)
 
   /* `maps' now contains the objects in the right order.  Now call the
      destructors.  We have to process this array from the front.  */
-  for (i = 0; i < nloaded; ++i)
+  for (i = 0; i < _dl_nloaded; ++i)
     {
       l = maps[i];
 
diff --git a/elf/dl-load.c b/elf/dl-load.c
index a1e4e5a..ffaca6e 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -1105,13 +1105,14 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname,
     {
       /* Remove from the module list.  */
       assert (l->l_next == NULL);
-#ifdef SHARED
+#ifndef SHARED
       if (l->l_prev == NULL)
 	/* No other module loaded.  */
 	_dl_loaded = NULL;
       else
 #endif
 	l->l_prev->l_next = NULL;
+      --_dl_nloaded;
 
       /* We are not supposed to load this object.  Free all resources.  */
       __munmap ((void *) l->l_map_start, l->l_map_end - l->l_map_start);
diff --git a/elf/dl-object.c b/elf/dl-object.c
index 986929c..eab8840 100644
--- a/elf/dl-object.c
+++ b/elf/dl-object.c
@@ -67,6 +67,7 @@ _dl_new_object (char *realname, const char *libname, int type,
     }
   else
     _dl_loaded = new;
+  ++_dl_nloaded;
   /* This is our local scope.  */
   if (loader != NULL)
     {
diff --git a/elf/dl-support.c b/elf/dl-support.c
index ec0bbb2..d2c8738 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -72,6 +72,8 @@ int _dl_bind_not;
 
 /* Initially empty list of loaded objects.  */
 struct link_map *_dl_loaded;
+/* Number of object in the _dl_loaded list.  */
+unsigned int _dl_nloaded;
 
 /* Fake scope.  In dynamically linked binaries this is the scope of the
    main application but here we don't have something like this.  So
diff --git a/elf/rtld.c b/elf/rtld.c
index 1d144c5..9a444fc 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -101,6 +101,8 @@ int _dl_bind_not;
 /* This is a pointer to the map for the main object and through it to
    all loaded objects.  */
 struct link_map *_dl_loaded;
+/* Number of object in the _dl_loaded list.  */
+unsigned int _dl_nloaded;
 /* Pointer to the l_searchlist element of the link map of the main object.  */
 struct r_scope_elem *_dl_main_searchlist;
 /* Copy of the content of `_dl_main_searchlist'.  */
@@ -670,6 +672,7 @@ of this helper program; chances are you did not intend to run this program.\n\
   _dl_rtld_map.l_type = lt_library;
   _dl_loaded->l_next = &_dl_rtld_map;
   _dl_rtld_map.l_prev = _dl_loaded;
+  ++_dl_nloaded;
 
   /* We have two ways to specify objects to preload: via environment
      variable and via the file /etc/ld.so.preload.  The latter can also