1 files changed, 46 insertions, 0 deletions
diff --git a/elf/dlsym.c b/elf/dlsym.c
new file mode 100644
index 0000000000..6d8781053b
--- /dev/null
+++ b/elf/dlsym.c
@@ -0,0 +1,46 @@
+/* dlsym -- Look up a symbol in a shared object loaded by `dlopen'.
+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>
+#include <dlfcn.h>
+#include <setjmp.h>
+
+
+void *
+dlsym (void *handle, const char *name)
+{
+  struct link_map *map = handle;
+  struct link_map *real_next;
+  Elf32_Addr value;
+  int lose;
+  void doit (void)
+    {
+      const Elf32_Sym *ref = NULL;
+      value = _dl_lookup_symbol (name, &ref, map);
+    }
+
+  /* Confine the symbol scope to just this map.  */
+  real_next = map->l_next;
+  map->l_next = NULL;
+  lose = _dlerror_run (doit);
+  map->l_next = real_next;
+
+  return lose ? NULL : (void *) value;
+}