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| <h4 class="subsection">21.2.1 Using <span class="sc">gdb</span> with VxWorks</h4> |
| |
| <p><a name="index-VxWorks-1274"></a> |
| |
| <a name="index-target-vxworks-1275"></a> |
| <dl><dt><code>target vxworks </code><var>machinename</var><dd>A VxWorks system, attached via TCP/IP. The argument <var>machinename</var> |
| is the target system's machine name or IP address. |
| |
| </dl> |
| |
| <p>On VxWorks, <code>load</code> links <var>filename</var> dynamically on the |
| current target system as well as adding its symbols in <span class="sc">gdb</span>. |
| |
| <p><span class="sc">gdb</span> enables developers to spawn and debug tasks running on networked |
| VxWorks targets from a Unix host. Already-running tasks spawned from |
| the VxWorks shell can also be debugged. <span class="sc">gdb</span> uses code that runs on |
| both the Unix host and on the VxWorks target. The program |
| <code>gdb</code> is installed and executed on the Unix host. (It may be |
| installed with the name <code>vxgdb</code>, to distinguish it from a |
| <span class="sc">gdb</span> for debugging programs on the host itself.) |
| |
| <dl> |
| <dt><code>VxWorks-timeout </code><var>args</var><dd><a name="index-vxworks_002dtimeout-1276"></a>All VxWorks-based targets now support the option <code>vxworks-timeout</code>. |
| This option is set by the user, and <var>args</var> represents the number of |
| seconds <span class="sc">gdb</span> waits for responses to rpc's. You might use this if |
| your VxWorks target is a slow software simulator or is on the far side |
| of a thin network line. |
| </dl> |
| |
| <p>The following information on connecting to VxWorks was current when |
| this manual was produced; newer releases of VxWorks may use revised |
| procedures. |
| |
| <p><a name="index-INCLUDE_005fRDB-1277"></a>To use <span class="sc">gdb</span> with VxWorks, you must rebuild your VxWorks kernel |
| to include the remote debugging interface routines in the VxWorks |
| library <samp><span class="file">rdb.a</span></samp>. To do this, define <code>INCLUDE_RDB</code> in the |
| VxWorks configuration file <samp><span class="file">configAll.h</span></samp> and rebuild your VxWorks |
| kernel. The resulting kernel contains <samp><span class="file">rdb.a</span></samp>, and spawns the |
| source debugging task <code>tRdbTask</code> when VxWorks is booted. For more |
| information on configuring and remaking VxWorks, see the manufacturer's |
| manual. |
| <!-- VxWorks, see the @cite{VxWorks Programmer's Guide}. --> |
| |
| <p>Once you have included <samp><span class="file">rdb.a</span></samp> in your VxWorks system image and set |
| your Unix execution search path to find <span class="sc">gdb</span>, you are ready to |
| run <span class="sc">gdb</span>. From your Unix host, run <code>gdb</code> (or |
| <code>vxgdb</code>, depending on your installation). |
| |
| <p><span class="sc">gdb</span> comes up showing the prompt: |
| |
| <pre class="smallexample"> (vxgdb) |
| </pre> |
| <ul class="menu"> |
| <li><a accesskey="1" href="VxWorks-Connection.html#VxWorks-Connection">VxWorks Connection</a>: Connecting to VxWorks |
| <li><a accesskey="2" href="VxWorks-Download.html#VxWorks-Download">VxWorks Download</a>: VxWorks download |
| <li><a accesskey="3" href="VxWorks-Attach.html#VxWorks-Attach">VxWorks Attach</a>: Running tasks |
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