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57 lines
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>14. Nulgrind: the minimal Valgrind tool</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
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<link rel="home" href="index.html" title="Valgrind Documentation">
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<link rel="up" href="manual.html" title="Valgrind User Manual">
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<link rel="prev" href="lk-manual.html" title="13. Lackey: an example tool">
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<link rel="next" href="FAQ.html" title="Valgrind FAQ">
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<div><table class="nav" width="100%" cellspacing="3" cellpadding="3" border="0" summary="Navigation header"><tr>
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<td width="22px" align="center" valign="middle"><a accesskey="p" href="lk-manual.html"><img src="images/prev.png" width="18" height="21" border="0" alt="Prev"></a></td>
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<th align="center" valign="middle">Valgrind User Manual</th>
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<div class="chapter">
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<div class="titlepage"><div><div><h1 class="title">
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<a name="nl-manual"></a>14. Nulgrind: the minimal Valgrind tool</h1></div></div></div>
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<div class="toc">
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<p><b>Table of Contents</b></p>
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<dl class="toc"><dt><span class="sect1"><a href="nl-manual.html#ms-manual.overview">14.1. Overview</a></span></dt></dl>
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</div>
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<p>To use this tool, you must specify
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<code class="option">--tool=none</code> on the Valgrind
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command line.</p>
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<div class="sect1">
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
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<a name="ms-manual.overview"></a>14.1. Overview</h2></div></div></div>
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<p>Nulgrind is the simplest possible Valgrind tool. It performs no
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instrumentation or analysis of a program, just runs it normally. It is
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mainly of use for Valgrind's developers for debugging and regression
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testing.</p>
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<p>Nonetheless you can run programs with Nulgrind. They will run
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roughly 5 times more slowly than normal, for no useful effect. Note
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that you need to use the option <code class="option">--tool=none</code> to run
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Nulgrind (ie. not <code class="option">--tool=nulgrind</code>).</p>
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<br><table class="nav" width="100%" cellspacing="3" cellpadding="2" border="0" summary="Navigation footer">
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<tr>
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<td rowspan="2" width="40%" align="left">
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<a accesskey="p" href="lk-manual.html"><< 13. Lackey: an example tool</a> </td>
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<td width="20%" align="center"><a accesskey="u" href="manual.html">Up</a></td>
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<td rowspan="2" width="40%" align="right"> <a accesskey="n" href="FAQ.html">Valgrind FAQ >></a>
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</td>
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<tr><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td></tr>
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