diff --git a/libdw/libdw_alloc.c b/libdw/libdw_alloc.c
new file mode 100644
index 0000000..d6af23a
--- /dev/null
+++ b/libdw/libdw_alloc.c
@@ -0,0 +1,78 @@
+/* Memory handling for libdw.
+   Copyright (C) 2003, 2004, 2006 Red Hat, Inc.
+   This file is part of elfutils.
+   Written by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   This file is free software; you can redistribute it and/or modify
+   it under the terms of either
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at
+       your option) any later version
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at
+       your option) any later version
+
+   or both in parallel, as here.
+
+   elfutils 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
+   General Public License for more details.
+
+   You should have received copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <error.h>
+#include <errno.h>
+#include <stdlib.h>
+#include "libdwP.h"
+#include "system.h"
+
+
+void *
+__libdw_allocate (Dwarf *dbg, size_t minsize, size_t align)
+{
+  size_t size = MAX (dbg->mem_default_size,
+		     (align - 1 +
+		      2 * minsize + offsetof (struct libdw_memblock, mem)));
+  struct libdw_memblock *newp = malloc (size);
+  if (newp == NULL)
+    dbg->oom_handler ();
+
+  uintptr_t result = ((uintptr_t) newp->mem + align - 1) & ~(align - 1);
+
+  newp->size = size - offsetof (struct libdw_memblock, mem);
+  newp->remaining = (uintptr_t) newp + size - (result + minsize);
+
+  newp->prev = dbg->mem_tail;
+  dbg->mem_tail = newp;
+
+  return (void *) result;
+}
+
+
+Dwarf_OOM
+dwarf_new_oom_handler (Dwarf *dbg, Dwarf_OOM handler)
+{
+  Dwarf_OOM old = dbg->oom_handler;
+  dbg->oom_handler = handler;
+  return old;
+}
+
+
+void
+__attribute ((noreturn)) attribute_hidden
+__libdw_oom (void)
+{
+  while (1)
+    error (EXIT_FAILURE, ENOMEM, "libdw");
+}