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<a name="title">&nbsp;</a>
<h1 align=center>Valgrind, version 2.1.0</h1>
<center>This manual was last updated on 21 January 2004</center>
<p>

<center>
<a href="mailto:jseward@acm.org">jseward@acm.org</a>,
   <a href="mailto:njn25@cam.ac.uk">njn25@cam.ac.uk</a><br>
Copyright &copy; 2000-2003 Julian Seward, Nick Nethercote
<p>

Valgrind is licensed under the GNU General Public License, version
2<br>

An open-source tool for debugging and profiling Linux-x86 executables.
</center>

<p>

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<a name="contents"></a>
<h2>Contents of this manual</h2>

<h4>1&nbsp; <a href="coregrind_intro.html#intro">Introduction</a></h4>
    1.1&nbsp; <a href="coregrind_intro.html#intro-overview">
              An overview of Valgrind</a><br>
    1.2&nbsp; <a href="coregrind_intro.html#intro-navigation">
              How to navigate this manual</a>

<h4>2&nbsp; <a href="coregrind_core.html#core">
            Using and understanding the Valgrind core</a></h4>
    2.1&nbsp; <a href="coregrind_core.html#core-whatdoes">
                      What it does with your program</a><br>
    2.2&nbsp; <a href="coregrind_core.html#started">
                      Getting started</a><br>
    2.3&nbsp; <a href="coregrind_core.html#comment">
                      The commentary</a><br>
    2.4&nbsp; <a href="coregrind_core.html#report">
                      Reporting of errors</a><br>
    2.5&nbsp; <a href="coregrind_core.html#suppress">
                      Suppressing errors</a><br>
    2.6&nbsp; <a href="coregrind_core.html#flags">
                      Command-line flags for the Valgrind core</a><br>
    2.7&nbsp; <a href="coregrind_core.html#clientreq">
                      The Client Request mechanism</a><br>
    2.8&nbsp; <a href="coregrind_core.html#pthreads">
                      Support for POSIX pthreads</a><br>
    2.9&nbsp; <a href="coregrind_core.html#signals">
                      Handling of signals</a><br>
    2.10&nbsp; <a href="coregrind_core.html#install">
                       Building and installing</a><br>
    2.11&nbsp; <a href="coregrind_core.html#problems">
                        If you have problems</a><br>
    2.12&nbsp; <a href="coregrind_core.html#limits">
                       Limitations</a><br>
    2.13&nbsp; <a href="coregrind_core.html#howworks">
                       How it works -- a rough overview</a><br>
    2.14&nbsp; <a href="coregrind_core.html#example">
                       An example run</a><br>
    2.15&nbsp; <a href="coregrind_core.html#warnings">
                       Warning messages you might see</a><br>

<h4>3&nbsp; <a href="mc_main.html#mc-top">
            Memcheck: a heavyweight memory checker</a></h4>

<h4>4&nbsp; <a href="cg_main.html#cg-top">
            Cachegrind: a cache-miss profiler</a></h4>

<h4>5&nbsp; <a href="ac_main.html#ac-top">
            Addrcheck: a lightweight memory checker</a></h4>

<h4>6&nbsp; <a href="hg_main.html#hg-top">
            Helgrind: a data-race detector</a></h4>

<h4>7&nbsp; <a href="ms_main.html#ms-top">
            Massif: a heap profiler</a></h4>

<p>
The following is not part of the user manual.  It describes how you can
write tools for Valgrind, in order to make new program supervision
tools.

<h4>8&nbsp; <a href="coregrind_tools.html">
            Valgrind Tools</a></h4>

<p>
The following are not part of the user manual.  They describe internal
details of how Valgrind works.  Reading them may rot your brain.  You
have been warned.

<h4>9&nbsp; <a href="mc_techdocs.html#mc-techdocs">
            The design and implementation of Valgrind</a></h4>

<h4>10&nbsp; <a href="cg_techdocs.html#cg-techdocs">
            How Cachegrind works</a></h4>

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