137 lines
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137 lines
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<title>Debugging with GDB: Listing Static Tracepoint Markers</title>
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<a name="Listing-Static-Tracepoint-Markers"></a>
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Next: <a href="Starting-and-Stopping-Trace-Experiments.html#Starting-and-Stopping-Trace-Experiments" accesskey="n" rel="next">Starting and Stopping Trace Experiments</a>, Previous: <a href="Listing-Tracepoints.html#Listing-Tracepoints" accesskey="p" rel="previous">Listing Tracepoints</a>, Up: <a href="Set-Tracepoints.html#Set-Tracepoints" accesskey="u" rel="up">Set Tracepoints</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="Listing-Static-Tracepoint-Markers-1"></a>
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<h4 class="subsection">13.1.8 Listing Static Tracepoint Markers</h4>
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<dl compact="compact">
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<dd><a name="index-info-static_002dtracepoint_002dmarkers"></a>
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<a name="index-information-about-static-tracepoint-markers"></a>
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</dd>
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<dt><code>info static-tracepoint-markers</code></dt>
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<dd><p>Display information about all static tracepoint markers defined in the
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program.
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</p>
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<p>For each marker, the following columns are printed:
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</p>
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<dl compact="compact">
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<dt><em>Count</em></dt>
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<dd><p>An incrementing counter, output to help readability. This is not a
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stable identifier.
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</p></dd>
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<dt><em>ID</em></dt>
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<dd><p>The marker ID, as reported by the target.
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</p></dd>
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<dt><em>Enabled or Disabled</em></dt>
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<dd><p>Probed markers are tagged with ‘<samp>y</samp>’. ‘<samp>n</samp>’ identifies marks
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that are not enabled.
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</p></dd>
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<dt><em>Address</em></dt>
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<dd><p>Where the marker is in your program, as a memory address.
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</p></dd>
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<dt><em>What</em></dt>
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<dd><p>Where the marker is in the source for your program, as a file and line
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number. If the debug information included in the program does not
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allow <small>GDB</small> to locate the source of the marker, this column
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will be left blank.
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</p></dd>
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</dl>
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<p>In addition, the following information may be printed for each marker:
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</p>
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<dl compact="compact">
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<dt><em>Data</em></dt>
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<dd><p>User data passed to the tracing library by the marker call. In the
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UST backend, this is the format string passed as argument to the
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marker call.
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</p></dd>
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<dt><em>Static tracepoints probing the marker</em></dt>
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<dd><p>The list of static tracepoints attached to the marker.
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</p></dd>
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</dl>
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<div class="smallexample">
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<pre class="smallexample">(gdb) info static-tracepoint-markers
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Cnt ID Enb Address What
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1 ust/bar2 y 0x0000000000400e1a in main at stexample.c:25
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Data: number1 %d number2 %d
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Probed by static tracepoints: #2
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2 ust/bar33 n 0x0000000000400c87 in main at stexample.c:24
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Data: str %s
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(gdb)
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</pre></div>
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</dd>
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</dl>
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