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<title>Debugging with GDB: IPA Protocol Commands</title>
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<a name="IPA-Protocol-Commands"></a>
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<p>
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Previous: <a href="IPA-Protocol-Objects.html#IPA-Protocol-Objects" accesskey="p" rel="previous">IPA Protocol Objects</a>, Up: <a href="In_002dprocess-Agent-Protocol.html#In_002dprocess-Agent-Protocol" accesskey="u" rel="up">In-process Agent Protocol</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<a name="IPA-Protocol-Commands-1"></a>
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<h4 class="subsection">30.1.2 IPA Protocol Commands</h4>
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<a name="index-ipa-protocol-commands"></a>
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<p>The spaces in each command are delimiters to ease reading this commands
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specification. They don’t exist in real commands.
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</p>
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<dl compact="compact">
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<dt>‘<samp>FastTrace:<var>tracepoint_object</var> <var>gdb_jump_pad_head</var></samp>’</dt>
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<dd><p>Installs a new fast tracepoint described by <var>tracepoint_object</var>
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(see <a href="IPA-Protocol-Objects.html#tracepoint-object">tracepoint object</a>). The <var>gdb_jump_pad_head</var>, 8-byte long, is the
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head of <em>jumppad</em>, which is used to jump to data collection routine
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in IPA finally.
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</p>
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<p>Replies:
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</p><dl compact="compact">
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<dt>‘<samp>OK <var>target_address</var> <var>gdb_jump_pad_head</var> <var>fjump_size</var> <var>fjump</var></samp>’</dt>
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<dd><p><var>target_address</var> is address of tracepoint in the inferior.
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The <var>gdb_jump_pad_head</var> is updated head of jumppad. Both of
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<var>target_address</var> and <var>gdb_jump_pad_head</var> are 8-byte long.
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The <var>fjump</var> contains a sequence of instructions jump to jumppad entry.
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The <var>fjump_size</var>, 4-byte long, is the size of <var>fjump</var>.
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</p></dd>
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<dt>‘<samp>E <var>NN</var></samp>’</dt>
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<dd><p>for an error
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</p>
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</dd>
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</dl>
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</dd>
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<dt>‘<samp>close</samp>’</dt>
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<dd><p>Closes the in-process agent. This command is sent when <small>GDB</small> or GDBserver
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is about to kill inferiors.
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</p>
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</dd>
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<dt>‘<samp>qTfSTM</samp>’</dt>
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<dd><p>See <a href="Tracepoint-Packets.html#qTfSTM">qTfSTM</a>.
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</p></dd>
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<dt>‘<samp>qTsSTM</samp>’</dt>
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<dd><p>See <a href="Tracepoint-Packets.html#qTsSTM">qTsSTM</a>.
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</p></dd>
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<dt>‘<samp>qTSTMat</samp>’</dt>
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<dd><p>See <a href="Tracepoint-Packets.html#qTSTMat">qTSTMat</a>.
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</p></dd>
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<dt>‘<samp>probe_marker_at:<var>address</var></samp>’</dt>
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<dd><p>Asks in-process agent to probe the marker at <var>address</var>.
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</p>
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<p>Replies:
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</p><dl compact="compact">
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<dt>‘<samp>E <var>NN</var></samp>’</dt>
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<dd><p>for an error
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</p></dd>
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</dl>
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</dd>
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<dt>‘<samp>unprobe_marker_at:<var>address</var></samp>’</dt>
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<dd><p>Asks in-process agent to unprobe the marker at <var>address</var>.
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</p></dd>
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</dl>
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