1 files changed, 55 insertions, 0 deletions
diff --git a/dlfcn/dlvsym.c b/dlfcn/dlvsym.c
new file mode 100644
index 0000000..a279b95
--- /dev/null
+++ b/dlfcn/dlvsym.c
@@ -0,0 +1,55 @@
+/* Look up a versioned symbol in a shared object loaded by `dlopen'.
+   Copyright (C) 1995, 1996, 1997, 1998, 1999 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <dlfcn.h>
+
+struct dlvsym_args
+{
+  /* The arguments to dlvsym_doit.  */
+  void *handle;
+  const char *name;
+  const char *version;
+  void *who;
+
+  /* The return values of dlvsym_doit.  */
+  void *sym;
+};
+
+
+static void
+dlvsym_doit (void *a)
+{
+  struct dlvsym_args *args = (struct dlvsym_args *)a;
+
+  args->sym = _dl_vsym (args->handle, args->name, args->version, args->who);
+}
+
+void *
+__dlvsym (void *handle, const char *name, const char *version_str)
+{
+  struct dlvsym_args args;
+
+  args.handle = handle;
+  args.name = name;
+  args.who = __builtin_return_address (0);
+  args.version = version_str;
+
+  return (_dlerror_run (dlvsym_doit, &args) ? NULL : args.sym);
+}
+weak_alias (__dlvsym, dlvsym)