1 files changed, 92 insertions, 0 deletions
diff --git a/cpukit/libmisc/serdbg/serdbg.c b/cpukit/libmisc/serdbg/serdbg.c
new file mode 100644
index 0000000000..2f9abf6824
--- /dev/null
+++ b/cpukit/libmisc/serdbg/serdbg.c
@@ -0,0 +1,92 @@
+/*===============================================================*\
+| Project: RTEMS remote gdb over serial line                      |
++-----------------------------------------------------------------+
+| File: serdbg.c                                                  |
++-----------------------------------------------------------------+
+|                    Copyright (c) 2002 IMD                       |
+|      Ingenieurbuero fuer Microcomputertechnik Th. Doerfler      |
+|               <Thomas.Doerfler@imd-systems.de>                  |
+|                       all rights reserved                       |
++-----------------------------------------------------------------+
+| this file contains intialization and utility functions to add   |
+| a gdb remote debug stub to an RTEMS system                      |
+|                                                                 |
++-----------------------------------------------------------------+
+|   date                      history                        ID   |
+| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
+| 04.04.02  creation                                         doe  |
+\*===============================================================*/
+/*
+ * $Id$
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <rtems/serdbg.h>
+
+
+/*=========================================================================*\
+| Function:                                                                 |
+\*-------------------------------------------------------------------------*/
+int serdbg_init_dbg
+(
+/*-------------------------------------------------------------------------*\
+| Purpose:                                                                  |
+|   initialize remote gdb session over serial line                          |
++---------------------------------------------------------------------------+
+| Input Parameters:                                                         |
+\*-------------------------------------------------------------------------*/
+ void
+)
+/*-------------------------------------------------------------------------*\
+| Return Value:                                                             |
+|    rtems_status_code                                                      |
+\*=========================================================================*/
+{
+  static bool is_initialized = false;
+
+  rtems_status_code rc = RTEMS_SUCCESSFUL;
+
+  if (is_initialized) {
+    return RTEMS_SUCCESSFUL;
+  }
+  is_initialized = true;
+  /*
+   * try to open serial device
+   */
+  if (rc == RTEMS_SUCCESSFUL) {
+    if ((serdbg_conf.open_io != NULL) &&
+	(0 > serdbg_conf.open_io(serdbg_conf.devname,serdbg_conf.baudrate))) {
+      fprintf(stderr,
+	      "remote_gdb_init: cannot open device %s "
+	      "for gdb connection:%s\n",serdbg_conf.devname,strerror(errno));
+      rc = RTEMS_IO_ERROR;
+    }
+  }
+  /*
+   * initialize gdb stub
+   */
+  if (rc == RTEMS_SUCCESSFUL) {
+    set_debug_traps();
+  }
+  /*
+   * now activate gdb stub
+   */
+  if ((rc == RTEMS_SUCCESSFUL) &&
+      !serdbg_conf.skip_init_bkpt) {
+    breakpoint();
+  }
+
+  /*
+   * return to original function
+   * this may be already unter gdb control
+   */
+  return rc;
+}