diff --git a/coregrind/coregrind.h b/coregrind/coregrind.h
new file mode 100644
index 0000000..8f3b984
--- /dev/null
+++ b/coregrind/coregrind.h
@@ -0,0 +1,80 @@
+
+/*--------------------------------------------------------------------*/
+/*--- Internal client requests.                        coregrind.h ---*/
+/*--------------------------------------------------------------------*/
+
+/*
+   This file is part of Valgrind, a dynamic binary instrumentation
+   framework.
+
+   Copyright (C) 2000-2005 Julian Seward
+      jseward@acm.org
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of 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.
+
+   This program 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 a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307, USA.
+
+   The GNU General Public License is contained in the file COPYING.
+*/
+
+#ifndef __COREGRIND_H
+#define __COREGRIND_H
+
+//--------------------------------------------------------------------
+// PURPOSE: This file is the counterpart to valgrind.h.  It contains
+// the client requests that are internal to Valgrind, and not to be seen
+// by client programs.
+//--------------------------------------------------------------------
+
+#include <stdarg.h>
+
+// The strange choice of values here is due to historical reasons -- there
+// used to be many more internal client requests.
+typedef
+   enum { 
+      /* Denote the finish of __libc_freeres_wrapper().  Also causes exit. */
+      VG_USERREQ__LIBC_FREERES_DONE = 0x3029,
+
+      /* Get the tool's malloc-wrapping functions */
+      VG_USERREQ__GET_MALLOCFUNCS   = 0x3030,
+
+      /* Internal equivalent of VALGRIND_PRINTF . */
+      VG_USERREQ__INTERNAL_PRINTF   = 0x3103,
+
+   } Vg_InternalClientRequest;
+
+// Function for printing from code within Valgrind, but which runs on the
+// sim'd CPU.  Must be a function rather than macros so that va_list can
+// be used.
+
+int VALGRIND_INTERNAL_PRINTF(char *format, ...);
+__attribute__((format(__printf__, 1, 2)))
+__attribute__((weak))
+int VALGRIND_INTERNAL_PRINTF(char *format, ...)
+{
+   unsigned long _qzz_res = 0;
+   va_list vargs;
+   va_start(vargs, format);
+   VALGRIND_MAGIC_SEQUENCE(_qzz_res, 0, VG_USERREQ__INTERNAL_PRINTF,
+                           (unsigned long)format, (unsigned long)vargs, 0, 0);
+   va_end(vargs);
+   return _qzz_res;
+}
+
+
+#endif   // __COREGRIND_H
+
+/*--------------------------------------------------------------------*/
+/*--- end                                                          ---*/
+/*--------------------------------------------------------------------*/