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If an executable is compiled for <a href="Profiling">profiling</a>, then it accepts a special command-line runtime system argument, <tt>show-prof</tt>, that outputs information about the source functions that are profiled.  Normally, this information is used by <tt>mlprof</tt>.  This page documents the <tt>show-prof</tt> output format, and is intended for those working on the profiler internals. <p>
The <tt>show-prof</tt> output is ASCII, and consists of a sequence of lines. 
</p>

    <ul>

    <li>
<p>
 The magic number of the executable. 
</p>
</li>
    <li>
<p>
 The number of source names in the executable. 
</p>
</li>
    <li>
<p>
 A line for each source name giving the name of the function, a tab,  the filename of the file containing the function, a colon, a space,  and the line number that the function starts on in that file. 
</p>
</li>
    <li>
<p>
 The number of (split) source functions. 
</p>
</li>
    <li>
<p>
 A line for each (split) source function, where each line consists  of a source-name index (into the array of source names) and a  successors index (into the array of split-source sequences, defined  below). 
</p>
</li>
    <li>
<p>
 The number of split-source sequences. 
</p>
</li>
    <li>
<p>
 A line for each split-source sequence, where each line is a space  separated list of (split) source functions. 
</p>
</li>

    </ul>


<p>
The latter two arrays, split sources and split-source sequences, define a directed graph, which is the call-graph of the program. 
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Last edited on 2006-10-23 23:29:54 by <span title="ppp-71-139-167-207.dsl.snfc21.pacbell.net"><a href="StephenWeeks">StephenWeeks</a></span>.
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