1 files changed, 86 insertions, 0 deletions
diff --git a/elf/dl-init.c b/elf/dl-init.c
new file mode 100644
index 0000000000..e3bfc2ccea
--- /dev/null
+++ b/elf/dl-init.c
@@ -0,0 +1,86 @@
+/* Return the next shared object initializer function not yet run.
+Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <stddef.h>
+#include <link.h>
+
+
+Elf32_Addr
+_dl_init_next (void)
+{
+  struct link_map *l;
+  Elf32_Addr init;
+
+  Elf32_Addr next_init (struct link_map *l)
+    {
+      if (l->l_init_called)
+	/* This object is all done.  */
+	return 0;
+      if (l->l_init_running)
+	{
+	  /* This object's initializer was just running.
+	     Now mark it as having run, so this object
+	     will be skipped in the future.  */
+	  l->l_init_called = 1;
+	  l->l_init_running = 0;
+	  return 0;
+	}
+
+      if (l->l_info[DT_NEEDED])
+	{
+	  /* Find each dependency in order, and see if it
+	     needs to run an initializer.  */
+	  const Elf32_Dyn *d;
+	  for (d = l->l_ld; d->d_tag != DT_NULL; ++d)
+	    if (d->d_tag == DT_NEEDED)
+	      {
+		struct link_map *needed = _dl_map_object
+		  (l, (const char *) (l->l_addr + d->d_un.d_ptr), NULL);
+		Elf32_Addr init;
+		--needed->l_opencount;
+		init = next_init (l); /* Recurse on this dependency.  */
+		if (init != 0)
+		  return init;
+	      }
+	}
+
+      if (l->l_info[DT_INIT])
+	{
+	  /* Run this object's initializer.  */
+	  l->l_init_running = 1;
+	  return l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr;
+	}
+
+      /* No initializer for this object.
+	 Mark it so we will skip it in the future.  */
+      l->l_init_called = 1;
+      return 0;
+    }
+
+  /* Look for the first initializer not yet called.  */
+  l = _dl_loaded;
+  do
+    {
+      init = next_init (l);
+      l = l->l_next;
+    }
+  while (init == 0 && l);
+
+  return init;
+}