1 files changed, 94 insertions, 0 deletions
diff --git a/gdb/arc-dummy-gpio.c b/gdb/arc-dummy-gpio.c
new file mode 100644
index 00000000000..8297408215d
--- /dev/null
+++ b/gdb/arc-dummy-gpio.c
@@ -0,0 +1,94 @@
+/* Target dependent code for ARC processor family, for GDB, the GNU debugger.
+
+   Copyright 2008, 2009 Free Software Foundation, Inc.
+
+   Contributed by ARC International (www.arc.com)
+
+   Authors:
+      Richard Stuckey      <richard.stuckey@arc.com>
+
+   This file is part of GDB.
+
+   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 3 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, see <http://www.gnu.org/licenses/>.  */
+
+/******************************************************************************/
+/*                                                                            */
+/* Outline:                                                                   */
+/*     This module implements a dummy set of operations for reading data from */
+/*     / writing data to a parallel port using a GPIO (General Purpose Input/ */
+/*     Output) driver.                                                        */
+/*                                                                            */
+/*     It is useful for testing when no hardware target is available.         */
+/*                                                                            */
+/******************************************************************************/
+
+#include "arc-gpio.h"
+
+
+/* -------------------------------------------------------------------------- */
+/*                               externally visible data                      */
+/* -------------------------------------------------------------------------- */
+
+/* This is set to TRUE if an I/O error occurs in accessing the port.
+   (This never happens in this dummy module).  */
+Boolean gpio_port_error;
+
+
+/* -------------------------------------------------------------------------- */
+/*                               externally visible functions                 */
+/* -------------------------------------------------------------------------- */
+
+/* Initialization of the GPIO interface.  */
+
+Boolean
+gpio_open (void)
+{
+    gpio_port_error = FALSE;
+    return TRUE;
+}
+
+
+/* Close the GPIO interface.  */
+
+void
+gpio_close (void)
+{
+}
+
+
+/* Write a byte of data to the given port.  */
+
+void
+gpio_write (ParallelPort port, Byte data)
+{
+}
+
+
+/* Read a byte of data from the given port.  */
+
+Byte
+gpio_read (ParallelPort port)
+{
+    return 0;
+}
+
+
+/* Write a series of bytes of data to the ports.  */
+
+void
+gpio_write_array (GPIO_Pair array[], unsigned int num_elements)
+{
+}
+
+/******************************************************************************/