diff -r 000000000000 -r 6474c204b198 tools/reorder/cygprof.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/reorder/cygprof.c	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,27 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+
+  A stub library to LD_PRELOAD against an image that's been compiled
+  with -finstrument-functions. It dumps the address of the function
+  that's being entered upon function entry, and the address that's
+  being returned to on function exit. Addresses are dumped as binary
+  data to stdout.
+
+ */
+
+#include <unistd.h>
+
+void
+__cyg_profile_func_enter(void *this_fn, void *call_site)
+{
+    write(STDOUT_FILENO, &this_fn, sizeof this_fn);
+}
+
+void
+__cyg_profile_func_exit(void *this_fn, void *call_site)
+{
+    write(STDOUT_FILENO, &call_site, sizeof call_site);
+}