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<div class="titlepage"><div><div><h1 class="title">
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<a name="dist.readme"></a>4. README</h1></div></div></div>
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<div class="literallayout"><p><br>
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<br>
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Release notes for Valgrind<br>
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~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
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If you are building a binary package of Valgrind for distribution,<br>
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please read README_PACKAGERS. It contains some important information.<br>
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<br>
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If you are developing Valgrind, please read README_DEVELOPERS. It contains<br>
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some useful information.<br>
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<br>
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For instructions on how to build/install, see the end of this file.<br>
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<br>
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If you have problems, consult the FAQ to see if there are workarounds.<br>
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<br>
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<br>
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Executive Summary<br>
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~~~~~~~~~~~~~~~~~<br>
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Valgrind is a framework for building dynamic analysis tools. There are<br>
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Valgrind tools that can automatically detect many memory management<br>
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and threading bugs, and profile your programs in detail. You can also<br>
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use Valgrind to build new tools.<br>
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<br>
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The Valgrind distribution currently includes six production-quality<br>
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tools: a memory error detector, two thread error detectors, a cache<br>
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and branch-prediction profiler, a call-graph generating cache abd<br>
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branch-prediction profiler, and a heap profiler. It also includes<br>
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three experimental tools: a heap/stack/global array overrun detector,<br>
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a different kind of heap profiler, and a SimPoint basic block vector<br>
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generator.<br>
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<br>
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Valgrind is closely tied to details of the CPU, operating system and to<br>
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a lesser extent, compiler and basic C libraries. This makes it difficult<br>
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to make it portable. Nonetheless, it is available for the following<br>
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platforms: <br>
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<br>
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- X86/Linux<br>
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- AMD64/Linux<br>
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- PPC32/Linux<br>
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- PPC64/Linux<br>
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- ARM/Linux<br>
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- x86/MacOSX<br>
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- AMD64/MacOSX<br>
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- S390X/Linux<br>
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- MIPS32/Linux<br>
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- MIPS64/Linux<br>
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<br>
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Note that AMD64 is just another name for x86_64, and Valgrind runs fine<br>
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on Intel processors. Also note that the core of MacOSX is called<br>
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"Darwin" and this name is used sometimes.<br>
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<br>
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Valgrind is licensed under the GNU General Public License, version 2. <br>
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Read the file COPYING in the source distribution for details.<br>
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<br>
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However: if you contribute code, you need to make it available as GPL<br>
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version 2 or later, and not 2-only.<br>
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<br>
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<br>
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Documentation<br>
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~~~~~~~~~~~~~<br>
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A comprehensive user guide is supplied. Point your browser at<br>
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$PREFIX/share/doc/valgrind/manual.html, where $PREFIX is whatever you<br>
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specified with --prefix= when building.<br>
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<br>
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<br>
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Building and installing it<br>
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~~~~~~~~~~~~~~~~~~~~~~~~~~<br>
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To install from the Subversion repository :<br>
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<br>
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0. Check out the code from SVN, following the instructions at<br>
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http://www.valgrind.org/downloads/repository.html.<br>
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<br>
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1. cd into the source directory.<br>
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<br>
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2. Run ./autogen.sh to setup the environment (you need the standard<br>
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autoconf tools to do so).<br>
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<br>
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3. Continue with the following instructions...<br>
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<br>
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To install from a tar.bz2 distribution:<br>
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<br>
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4. Run ./configure, with some options if you wish. The only interesting<br>
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one is the usual --prefix=/where/you/want/it/installed.<br>
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<br>
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5. Run "make".<br>
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<br>
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6. Run "make install", possibly as root if the destination permissions<br>
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require that.<br>
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<br>
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7. See if it works. Try "valgrind ls -l". Either this works, or it<br>
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bombs out with some complaint. In that case, please let us know<br>
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(see www.valgrind.org).<br>
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<br>
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Important! Do not move the valgrind installation into a place<br>
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different from that specified by --prefix at build time. This will<br>
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cause things to break in subtle ways, mostly when Valgrind handles<br>
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fork/exec calls.<br>
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<br>
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<br>
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The Valgrind Developers<br>
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<br>
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<a accesskey="p" href="dist.news.old.html"><< 3. OLDER NEWS</a> </td>
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<td rowspan="2" width="40%" align="right"> <a accesskey="n" href="dist.readme-missing.html">5. README_MISSING_SYSCALL_OR_IOCTL >></a>
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<tr><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td></tr>
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