Add support for FT32 platform.

libgloss/ft32/sim-lseek.c

@@ -0,0 +1,32 @@
+/*
+ * sim-lseek.S -- write interface for FT32 simulator
+ *
+ * Copyright (C) 2015 FTDI (support@ftdichip.com)
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+
+/*
+ * lseek -- Since a simulated serial port is non-seekable, we return
+ * an error.
+ */
+off_t
+_DEFUN (_lseek, (fd,  offset, whence),
+       int fd _AND
+       off_t offset _AND
+       int whence)
+{
+  /*   errno = ESPIPE; */
+  return ((off_t)-1);
+}