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|  | <title>ưŪ¶¦Í¥ª¥Ö¥¸¥§¥¯¥È (DSO) ¥µ¥Ý¡¼¥È - Apache HTTP ¥µ¡¼¥Ð</title> | 
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|  | <p class="menu"><a href="./mod/">¥â¥¸¥å¡¼¥ë</a> | <a href="./mod/directives.html">¥Ç¥£¥ì¥¯¥Æ¥£¥Ö</a> | <a href="./faq/">FAQ</a> | <a href="./glossary.html">ÍѸì</a> | <a href="./sitemap.html">¥µ¥¤¥È¥Þ¥Ã¥×</a></p> | 
|  | <p class="apache">Apache HTTP ¥µ¡¼¥Ð ¥Ð¡¼¥¸¥ç¥ó 2.1</p> | 
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|  | <a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP ¥µ¡¼¥Ð</a> > <a href="http://httpd.apache.org/docs-project/">¥É¥¥å¥á¥ó¥Æ¡¼¥·¥ç¥ó</a> > <a href="./">¥Ð¡¼¥¸¥ç¥ó 2.1</a></div><div id="page-content"><div id="preamble"><h1>ưŪ¶¦Í¥ª¥Ö¥¸¥§¥¯¥È (DSO) ¥µ¥Ý¡¼¥È</h1> | 
|  | <div class="toplang"> | 
|  | <p><span>Available Languages: </span><a href="./en/dso.html" hreflang="en" rel="alternate" title="English"> en </a> | | 
|  | <a href="./ja/dso.html" title="Japanese"> ja </a> | | 
|  | <a href="./ko/dso.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> | 
|  | </div> | 
|  |  | 
|  | <p>Apache HTTP ¥µ¡¼¥Ð¤Ï¥â¥¸¥å¡¼¥ë²½¤µ¤ì¤¿¥×¥í¥°¥é¥à¤Ç¡¢ | 
|  | ´ÉÍý¼Ô¤¬¥â¥¸¥å¡¼¥ë¤òÁªÂò¤¹¤ë¤³¤È¤Ç¥µ¡¼¥Ð¤ËÁȤ߹þ¤àµ¡Ç½¤òÁª¤Ö¤³¤È¤¬¤Ç¤¤Þ¤¹¡£ | 
|  | ¥â¥¸¥å¡¼¥ë¤Ï¥µ¡¼¥Ð¤¬¥Ó¥ë¥É¤µ¤ì¤ë¤È¤¤Ë <code class="program"><a href="./programs/httpd.html">httpd</a></code> ¥Ð¥¤¥Ê¥ê¤Ë | 
|  | ÀÅŪ¤ËÁȤ߹þ¤à¤³¤È¤¬¤Ç¤¤Þ¤¹¡£¤â¤·¤¯¤Ï¡¢<code class="program"><a href="./programs/httpd.html">httpd</a></code> ¥Ð¥¤¥Ê¥ê¤È¤Ï | 
|  | Ê̤˸ºß¤¹¤ëưŪ¶¦Í¥ª¥Ö¥¸¥§¥¯¥È (ÌõÃí: Dynamic Shared Object) | 
|  | (DSO) ¤È¤·¤Æ¥³¥ó¥Ñ¥¤¥ë¤¹¤ë¤³¤È¤â | 
|  | ¤Ç¤¤Þ¤¹¡£DSO ¥â¥¸¥å¡¼¥ë¤Ï¥µ¡¼¥Ð¤¬¥Ó¥ë¥É¤µ¤ì¤ë¤È¤¤Ë¥³¥ó¥Ñ¥¤¥ë¤·¤¿¤ê¡¢ | 
|  | Apache ³ÈÄ¥¥Ä¡¼¥ë (<code class="program"><a href="./programs/apxs.html">apxs</a></code>) ¤ò | 
|  | »È¤Ã¤Æ¸å¤Ç¥³¥ó¥Ñ¥¤¥ë¤·¤ÆÄɲä·¤¿¤ê¤Ç¤¤Þ¤¹¡£</p> | 
|  |  | 
|  | <p>¤³¤Îʸ½ñ¤Ï DSO ¥â¥¸¥å¡¼¥ë¤Î»È¤¤Êý¤È¡¢»ÅÁȤߤˤĤ¤¤Æ | 
|  | ÀâÌÀ¤·¤Þ¤¹¡£</p> | 
|  | </div> | 
|  | <div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#implementation">¼ÂÁõ</a></li> | 
|  | <li><img alt="" src="./images/down.gif" /> <a href="#usage">»ÈÍÑË¡¤Î³µÍ×</a></li> | 
|  | <li><img alt="" src="./images/down.gif" /> <a href="#background">ÇØ·Ê</a></li> | 
|  | <li><img alt="" src="./images/down.gif" /> <a href="#advantages">ÍøÅÀ¤È·çÅÀ</a></li> | 
|  | </ul></div> | 
|  | <div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div> | 
|  | <div class="section"> | 
|  | <h2><a name="implementation" id="implementation">¼ÂÁõ</a></h2> | 
|  |  | 
|  | <table class="related"><tr><th>´ØÏ¢¥â¥¸¥å¡¼¥ë</th><th>´ØÏ¢¥Ç¥£¥ì¥¯¥Æ¥£¥Ö</th></tr><tr><td><ul><li><code class="module"><a href="./mod/mod_so.html">mod_so</a></code></li></ul></td><td><ul><li><code class="directive"><a href="./mod/mod_so.html#loadmodule">LoadModule</a></code></li></ul></td></tr></table> | 
|  |  | 
|  | <p>¸Ä¡¹¤Î Apache ¥â¥¸¥å¡¼¥ë¤ò¥í¡¼¥É¤¹¤ë¤¿¤á¤Î DSO ¥µ¥Ý¡¼¥È¤Ï | 
|  | <code class="module"><a href="./mod/mod_so.c.html">mod_so.c</a></code> ¤È¤¤¤¦¥â¥¸¥å¡¼¥ë¤Îµ¡Ç½¤Ë´ð¤Å¤¤¤Æ¤¤¤Þ¤¹¡£ | 
|  | ¤³¤Î¥â¥¸¥å¡¼¥ë ¤Ï Apache ¤Î¥³¥¢¤ËÀÅŪ¤ËÁȤ߹þ¤Þ¤ì¤Æ¤¤¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£ | 
|  | ¤½¤ì¤Ï <code class="module"><a href="./mod/core.c.html">core.c</a></code> °Ê³°¤Ç¤Ï DSO ¤Ë¤Ç¤¤Ê¤¤Í£°ì¤Î | 
|  | ¥â¥¸¥å¡¼¥ë¤Ç¤¹¡£»ö¼Â¾å¡¢Â¾¤Î¤¹¤Ù¤Æ¤Î Apache ¤Î¥â¥¸¥å¡¼¥ë¤Ï¡¢ | 
|  | <a href="install.html">¥¤¥ó¥¹¥È¡¼¥ë¤Îʸ½ñ</a>¤ÇÀâÌÀ¤µ¤ì¤Æ¤¤¤ë¤è¤¦¤Ë¡¢ | 
|  | <code class="program"><a href="./programs/configure.html">configure</a></code> ¤Î | 
|  | <code>--enable-<em>module</em>=shared</code> ¥ª¥×¥·¥ç¥ó¤Ç¤½¤ì¤¾¤ì¤ò | 
|  | DSO ¥Ó¥ë¥É¤Ë¤¹¤ë¤³¤È¤Ë¤è¤ê¡¢DSO ¥â¥¸¥å¡¼¥ë¤Ë¤¹¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£ | 
|  | <code>mod_foo.so</code> ¤Î¤è¤¦¤Ê DSO ¤Ë¥â¥¸¥å¡¼¥ë¤¬¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤ì¤Ð¡¢ | 
|  | <code>httpd.conf</code> ¥Õ¥¡¥¤¥ëÃæ¤Ç <code class="module"><a href="./mod/mod_so.html">mod_so</a></code> ¤Î | 
|  | <code class="directive"><a href="./mod/mod_so.html#loadmodule">LoadModule</a></code> | 
|  | ¥Ç¥£¥ì¥¯¥Æ¥£¥Ö¤ò»È¤¦¤³¤È¤Ç¥µ¡¼¥Ð¤Îµ¯Æ°¤äºÆµ¯Æ°»þ¤Ë¤³¤Î¥â¥¸¥å¡¼¥ë¤ò | 
|  | ¥í¡¼¥É¤¹¤ë¤è¤¦¤Ë¤Ç¤¤Þ¤¹¡£</p> | 
|  |  | 
|  | <p>Apache ¥â¥¸¥å¡¼¥ëÍѤΠ(ÆÃ¤Ë¥µ¡¼¥É¥Ñ¡¼¥Æ¥£¥â¥¸¥å¡¼¥ë¤Î) DSO ¥Õ¥¡¥¤¥ë¤Î | 
|  | ºîÀ®¤ò´Êñ¤Ë¤¹¤ë¤¿¤á¤Ë¡¢<code class="program"><a href="./programs/apxs.html">apxs</a></code> | 
|  | (<dfn>APache eXtenSion</dfn>) ¤È¤¤¤¦¿·¤·¤¤¥µ¥Ý¡¼¥È¥×¥í¥°¥é¥à¤¬¤¢¤ê¤Þ¤¹¡£ | 
|  | Apache ¤Î¥½¡¼¥¹¥Ä¥ê¡¼¤Î<em>³°¤Ç</em> DSO ¥â¥¸¥å¡¼¥ë¤ò¥Ó¥ë¥É¤¹¤ë¤¿¤á¤Ë | 
|  | »È¤¦¤³¤È¤¬¤Ç¤¤Þ¤¹¡£È¯ÁÛ¤Ïñ½ã¤Ç¤¹: Apache ¤Î¥¤¥ó¥¹¥È¡¼¥ë»þ¤Î | 
|  | <code class="program"><a href="./programs/configure.html">configure</a></code>¡¢<code>make install</code> ¤Î¤È¤¤Ë Apache ¤Î | 
|  | C ¥Ø¥Ã¥À¤ò¥¤¥ó¥¹¥È¡¼¥ë¤·¡¢DSO ¥Ó¥ë¥ÉÍѤΥץé¥Ã¥È¥Õ¥©¡¼¥à°Í¸¤Î | 
|  | ¥³¥ó¥Ñ¥¤¥é¤È¥ê¥ó¥«¤Î¥Õ¥é¥°¤ò <code class="program"><a href="./programs/apxs.html">apxs</a></code> ¥×¥í¥°¥é¥à¤ËÄɲä·¤Þ¤¹¡£ | 
|  | ¤³¤ì¤Ë¤è¤ê¡¢¥æ¡¼¥¶¤¬ Apache ¤ÎÇÛÉÛ¥½¡¼¥¹¥Ä¥ê¡¼¤Ê¤·¤Ç¡¢¤µ¤é¤Ë | 
|  | DSO ¥µ¥Ý¡¼¥È¤Î¤¿¤á¤Î¥×¥é¥Ã¥È¥Õ¥©¡¼¥à°Í¸¤Î¥³¥ó¥Ñ¥¤¥é¤ä¥ê¥ó¥«¤Î | 
|  | ¥Õ¥é¥°¤ò¤¤¤¸¤ë¤³¤È¤Ê¤¯ Apache ¤Î¥â¥¸¥å¡¼¥ë¤Î¥½¡¼¥¹¤ò¥³¥ó¥Ñ¥¤¥ë | 
|  | ¤Ç¤¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡£</p> | 
|  | </div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div> | 
|  | <div class="section"> | 
|  | <h2><a name="usage" id="usage">»ÈÍÑË¡¤Î³µÍ×</a></h2> | 
|  |  | 
|  | <p>Apache 2.0 ¤Î DSO µ¡Ç½¤Î³µÎ¬¤òÃΤ뤳¤È¤¬¤Ç¤¤ë¤¿¤á¤Î¡¢ | 
|  | û¤¯´Ê·é¤Ê³µÍפǤ¹:</p> | 
|  |  | 
|  | <ol> | 
|  | <li> | 
|  | <em>ÇÛÉÛ¤µ¤ì¤Æ¤¤¤ë</em> Apache ¥â¥¸¥å¡¼¥ë¡¢²¾¤Ë <code>mod_foo.c</code> | 
|  | ¤È¤·¤Æ¡¢¤½¤ì¤ò DSO <code>mod_foo.so</code> ¤Ë¥Ó¥ë¥É¡¢¥¤¥ó¥¹¥È¡¼¥ë: | 
|  |  | 
|  | <div class="example"><p><code> | 
|  | $ ./configure --prefix=/path/to/install --enable-foo=shared<br /> | 
|  | $ make install | 
|  | </code></p></div> | 
|  | </li> | 
|  |  | 
|  | <li> | 
|  | <em>¥µ¡¼¥É¥Ñ¡¼¥Æ¥£</em> Apache ¥â¥¸¥å¡¼¥ë¡¢²¾¤Ë <code>mod_foo.c</code> | 
|  | ¤È¤·¤Æ¡¢¤½¤ì¤ò DSO <code>mod_foo.so</code> ¤Ë¥Ó¥ë¥É¡¢¥¤¥ó¥¹¥È¡¼¥ë: | 
|  |  | 
|  | <div class="example"><p><code> | 
|  | $ ./configure --add-module=<var>module_type</var>:/path/to/3rdparty/mod_foo.c \<br /> | 
|  | <span class="indent"> | 
|  | --enable-foo=shared<br /> | 
|  | </span> | 
|  | $ make install | 
|  | </code></p></div> | 
|  | </li> | 
|  |  | 
|  | <li> | 
|  | ¶¦Í¥â¥¸¥å¡¼¥ë¤Î <em>¸å¡¹¤Î¥¤¥ó¥¹¥È¡¼¥ë</em> ¤Î¤¿¤á¤Ë | 
|  | Apache ¤òÀßÄê: | 
|  |  | 
|  | <div class="example"><p><code> | 
|  | $ ./configure --enable-so<br /> | 
|  | $ make install | 
|  | </code></p></div> | 
|  | </li> | 
|  |  | 
|  | <li> | 
|  | <em>¥µ¡¼¥É¥Ñ¡¼¥Æ¥£</em> Apache ¥â¥¸¥å¡¼¥ë¡¢²¾¤Ë <code>mod_foo.c</code> | 
|  | ¤È¤·¤Æ¡¢¤½¤ì¤ò <code class="program"><a href="./programs/apxs.html">apxs</a></code> ¤ò»È¤Ã¤Æ | 
|  | Apache ¥½¡¼¥¹¥Ä¥ê¡¼¤Î<em>³°¤Ç</em> DSO ¤Ë¥Ó¥ë¥É¡¢¥¤¥ó¥¹¥È¡¼¥ë: | 
|  |  | 
|  | <div class="example"><p><code> | 
|  | $ cd /path/to/3rdparty<br /> | 
|  | $ apxs -c mod_foo.c<br /> | 
|  | $ apxs -i -a -n foo mod_foo.la | 
|  | </code></p></div> | 
|  | </li> | 
|  | </ol> | 
|  |  | 
|  | <p>¤É¤Î¾ì¹ç¤Ë¤ª¤¤¤Æ¤â¡¢¶¦Í¥â¥¸¥å¡¼¥ë¤ò¥³¥ó¥Ñ¥¤¥ë¤·¤¿¸å¤Ç¡¢ | 
|  | <code>httpd.conf</code> ¤Ç | 
|  | <code class="directive"><a href="./mod/mod_so.html#loadmodule">LoadModule</a></code> | 
|  | ¥Ç¥£¥ì¥¯¥Æ¥£¥Ö¤ò»È¤Ã¤Æ Apache ¤¬¥â¥¸¥å¡¼¥ë¤ò»ÈÍѤ¹¤ë¤è¤¦¤Ë | 
|  | ¤·¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó¡£</p> | 
|  | </div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div> | 
|  | <div class="section"> | 
|  | <h2><a name="background" id="background">ÇØ·Ê</a></h2> | 
|  |  | 
|  | <p>ºÇ¶á¤Î Unix ·Ï¤Î OS ¤Ë¤Ï <em>ưŪ¶¦Í¥ª¥Ö¥¸¥§¥¯¥È</em> (DSO) | 
|  | ¤ÎưŪ¥ê¥ó¥¯/¥í¡¼¥É¤È¤¤¤¦µ¤¤Î¤¤¤¤¿µ¡¹½¤¬ | 
|  | ¸ºß¤·¤Þ¤¹¡£¤³¤ì¤Ï¡¢¼Â¹Ô»þ¤Ë¥×¥í¥°¥é¥à¤Î¥¢¥É¥ì¥¹¶õ´Ö¤Ë | 
|  | ¥í¡¼¥É¤Ç¤¤ë¤è¤¦¤ÊÆÃÊ̤ʷÁ¼°¤Ç¥×¥í¥°¥é¥à¤ò¥Ó¥ë¥É¤¹¤ë¤³¤È¤ò | 
|  | ²Äǽ¤Ë¤·¤Þ¤¹¡£</p> | 
|  |  | 
|  | <p>¤³¤Î¥í¡¼¥É¤ÏÆó¤Ä¤ÎÊýË¡¤Ç¹Ô¤Ê¤¦¤³¤È¤¬¤Ç¤¤Þ¤¹: ¼Â¹Ô¥×¥í¥°¥é¥à¤¬ | 
|  | µ¯Æ°¤µ¤ì¤¿¤È¤¤Ë <code>ld.so</code> ¤È¤¤¤¦¥·¥¹¥Æ¥à¥×¥í¥°¥é¥à | 
|  | ¤Ë¤è¤ê¼«Æ°Åª¤Ë¹Ô¤Ê¤ï¤ì¤ëÊýË¡¤È¡¢¼Â¹Ô¥×¥í¥°¥é¥àÃæ¤«¤é¡¢¥·¥¹¥Æ¥à¥³¡¼¥ë | 
|  | <code>dlopen()/dlsym()</code> ¤Ë¤è¤ë Unix ¥í¡¼¥À¤Ø¤Î | 
|  | ¥×¥í¥°¥é¥à¥·¥¹¥Æ¥à¤Î¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤ò»È¤Ã¤Æ¼êư¤Ç¹Ô¤Ê¤¦ÊýË¡¤È¤¬ | 
|  | ¤¢¤ê¤Þ¤¹¡£</p> | 
|  |  | 
|  | <p>ºÇ½é¤ÎÊýË¡¤Ç¤Ï DSO ¤ÏÉáÄ̤Ï<em>¶¦Í¥é¥¤¥Ö¥é¥ê</em>¤ä <em>DSO | 
|  | ¥é¥¤¥Ö¥é¥ê</em> ¤È¸Æ¤Ð¤ì¤Æ¤¤¤Æ¡¢DSO ¤Î̾Á°¤Ï | 
|  | <code>libfoo.so</code> ¤ä <code>libfoo.so.1.2</code> ¤Î¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£ | 
|  | ¤³¤ì¤é¤Ï¥·¥¹¥Æ¥à¥Ç¥£¥ì¥¯¥È¥ê (Ä̾ï <code>/usr/lib</code>) ¤Ë¸ºß¤·¡¢ | 
|  | ¼Â¹Ô¥×¥í¥°¥é¥à¤Ø¤Î¥ê¥ó¥¯¤Ï¥Ó¥ë¥É»þ¤Ë <code>-lfoo</code> ¤ò¥ê¥ó¥«¤Ë | 
|  | »ØÄꤹ¤ë¤³¤È¤Ç³ÎΩ¤µ¤ì¤Þ¤¹¡£¤³¤ì¤Ë¤è¤ê¥é¥¤¥Ö¥é¥ê¤Ø¤Î»²¾È¤¬¼Â¹Ô¥×¥í¥°¥é¥à¤Î | 
|  | ¥Õ¥¡¥¤¥ë¤Ë½ñ¤¹þ¤Þ¤ì¤Æ¡¢µ¯Æ°»þ¤Ë Unix ¤Î¥í¡¼¥À¤¬ <code>/usr/lib</code> ¤ä¡¢ | 
|  | ¥ê¥ó¥«¤Î <code>-R</code> ¤Î¤è¤¦¤Ê¥ª¥×¥·¥ç¥ó¤Ë¤è¤ê¥Ï¡¼¥É¥³¡¼¥É¤µ¤ì¤¿¥Ñ¥¹¡¢ | 
|  | ´Ä¶ÊÑ¿ô <code>LD_LIBRARY_PATH</code> ¤Ë¤è¤êÀßÄꤵ¤ì¤¿¥Ñ¥¹¡¢¤ÎÃæ¤«¤é | 
|  | <code>libfoo.so</code> ¤Î¾ì½ê¤ò¸«¤Ä¤±¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£¤½¤ì¤«¤é¡¢ | 
|  | ¼Â¹Ô¥×¥í¥°¥é¥àÃæ¤Î (¤Þ¤À̤²ò·è¤Î) ¥·¥ó¥Ü¥ë¤ò DSO ¤Ë¤¢¤ë¥·¥ó¥Ü¥ë¤Ç | 
|  | ²ò·è¤·¤Þ¤¹¡£</p> | 
|  |  | 
|  | <p>ÉáÄÌ¤Ï¼Â¹Ô¥×¥í¥°¥é¥àÃæ¤Î¥·¥ó¥Ü¥ë¤Ï DSO ¤«¤é¤Ï»²¾È¤µ¤ì¤Þ¤»¤ó | 
|  | (DSO ¤Ï°ìÈÌŪ¤Ê¥³¡¼¥É¤Ë¤è¤ëºÆÍøÍѲÄǽ¤Ê¥é¥¤¥Ö¥é¥ê¤Ç¤¹¤Î¤Ç)¡£ | 
|  | ¤Ç¤¹¤«¤é¡¢¤µ¤é¤Ê¤ë¥·¥ó¥Ü¥ë¤Î²ò·è¤ÏɬÍפ¢¤ê¤Þ¤»¤ó¡£ | 
|  | ¥·¥ó¥Ü¥ë¤Ï Unix ¥í¡¼¥À¤Ë¤è¤ê´°Á´¤Ê²ò·è¤¬¹Ô¤Ê¤ï¤ì¤Þ¤¹¤Î¤Ç¡¢¼Â¹Ô¥Õ¥¡¥¤¥ë¼«¿È¤Ï | 
|  | ²¿¤â¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤»¤ó¡£(¼ÂºÝ¤Î¤È¤³¤í¡¢ÀÅŪ¤Ç¤Ê¤¤ÊýË¡¤Ç¥ê¥ó¥¯¤µ¤ì¤Æ¤¤¤ë | 
|  | ¤¹¤Ù¤Æ¤Î¼Â¹Ô¥×¥í¥°¥é¥à¤ËÁȤ߹þ¤Þ¤ì¤Æ¤¤¤ë³«»ÏÍѤΥ³¡¼¥É¤Î°ìÉô¤Ë | 
|  | <code>ld.so</code> ¤òµ¯Æ°¤¹¤ë¥³¡¼¥É¤¬´Þ¤Þ¤ì¤Æ¤¤¤Þ¤¹)¡£¤è¤¯»È¤ï¤ì¤ë | 
|  | ¥é¥¤¥Ö¥é¥ê¤ÎưŪ¥í¡¼¥É¤ÎÍøÅÀ¤ÏÌÀ¤é¤«¤Ç¤¹¡£¥é¥¤¥Ö¥é¥ê¤Î¥³¡¼¥É¤Ï | 
|  | ¥·¥¹¥Æ¥à¥é¥¤¥Ö¥é¥ê¤Ë <code>libc.so</code> ¤Î¤è¤¦¤Ë¤·¤Æ°ìÅÙÊݸ¤¹¤ë¤À¤±¤Ç¤è¤¯¡¢ | 
|  | ¥×¥í¥°¥é¥à¤Î¤¿¤á¤ËɬÍפʥǥ£¥¹¥¯¤ÎÎΰè¤òÀáÌ󤹤뤳¤È¤¬¤Ç¤¤Þ¤¹¡£</p> | 
|  |  | 
|  | <p>Æó¤Ä¤á¤ÎÊýË¡¤Ç¤Ï DSO ¤ÏÉáÄ̤Ï<em>¶¦Í¥ª¥Ö¥¸¥§¥¯¥È</em>¤ä | 
|  | <em>DSO ¥Õ¥¡¥¤¥ë</em>¤È¸Æ¤Ð¤ì¤Æ¤¤¤Æ¡¢Ç¤°Õ¤Î³ÈÄ¥»Ò¤òÉÕ¤±¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹ | 
|  | (¤¿¤À¤·¡¢É¸½àŪ¤Ê̾Á°¤Ï <code>foo.so</code> ¤Ç¤¹)¡£ | 
|  | ¤³¤ì¤é¤Î¥Õ¥¡¥¤¥ë¤ÏÄ̾ï¤Ï¥×¥í¥°¥é¥àÀìÍѤΥǥ£¥ì¥¯¥È¥ê¤ËÃÖ¤«¤ì¡¢ | 
|  | ¤³¤ì¤é¤ò»È¤¦¼Â¹Ô¥×¥í¥°¥é¥à¤Ø¤Î¥ê¥ó¥¯¤Ï¼«Æ°Åª¤Ë¤Ï¤µ¤ì¤Þ¤»¤ó¡£ | 
|  | ¤Ç¤¹¤Î¤Ç¡¢¼Â¹Ô¥×¥í¥°¥é¥à¤Ï <code>dlopen()</code> ¤ò»È¤Ã¤Æ | 
|  | ¼Â¹Ô»þ¤Ë¼êư¤Ç DSO ¤ò¥×¥í¥°¥é¥à¤Î¥¢¥É¥ì¥¹¶õ´Ö¤Ë¥í¡¼¥É¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£ | 
|  | ¤³¤Î»þÅÀ¤Ç¤Ï¼Â¹Ô¥×¥í¥°¥é¥à¤ËÂФ·¤Æ DSO ¤Î¥·¥ó¥Ü¥ë¤Î²ò·è¤Ï¹Ô¤Ê¤ï¤ì¤Þ¤»¤ó¡£ | 
|  | ¤·¤«¤·¡¢¤½¤ÎÂå¤ï¤ê¤Ë Unix ¤Î¥í¡¼¥À¤¬ DSO ¤Î (¤Þ¤À̤²ò·è¤Î) ¥·¥ó¥Ü¥ë¤ò | 
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|  | ¥½¥Õ¥È¥¦¥§¥¢¥Ñ¥Ã¥±¡¼¥¸¤Ï¾¯¤·¤À¤±¤Ç¤·¤¿: Perl 5 (XS µ¡¹½¤È DnaLoader ¥â¥¸¥å¡¼¥ë | 
|  | ¤Ë¤è¤ë¤â¤Î)¡¢Netscape ¥µ¡¼¥Ð<em>¤Ê¤É</em>¤Ç¤¹¡£Apache ¤Ï¤¹¤Ç¤Ë | 
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|  | ´ð¤Å¤¤¤¿³°Éô¥â¥¸¥å¡¼¥ë¤Î Apache ¥³¥¢µ¡Ç½¤Ø¤Î¥ê¥ó¥¯¤ò¹Ô¤Ê¤Ã¤Æ¤¤¤Þ¤·¤¿¤Î¤Ç¡¢ | 
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|  | Apache ¤Ï¼Â¹Ô»þ¤Ë DSO ¤ò»È¤Ã¤Æ¥â¥¸¥å¡¼¥ë¤ò¥í¡¼¥É¤¹¤ë¤è¤¦¤Ë¤¹¤Ç¤Ë | 
|  | ±¿Ì¿ÉÕ¤±¤é¤ì¤Æ¤¤¤¿¤Î¤Ç¤¹¡£</p> | 
|  | </div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div> | 
|  | <div class="section"> | 
|  | <h2><a name="advantages" id="advantages">ÍøÅÀ¤È·çÅÀ</a></h2> | 
|  |  | 
|  | <p>¾åµ¤Î DSO ¤Ë´ð¤Å¤¤¤¿µ¡Ç½¤Ï°Ê²¼¤ÎÍøÅÀ¤¬¤¢¤ê¤Þ¤¹:</p> | 
|  |  | 
|  | <ul> | 
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|  | ¼Â¹Ô»þ¤Ë <code>httpd.conf</code> ¤ÎÀßÄêÍÑ¥³¥Þ¥ó¥É | 
|  | <code class="directive"><a href="./mod/mod_so.html#loadmodule">LoadModule</a></code> | 
|  | ¤ò»È¤¦¤³¤È¤¬¤Ç¤¤Þ¤¹¤Î¤Ç¡¢¥µ¡¼¥Ð¥Ñ¥Ã¥±¡¼¥¸¤Î½ÀÆðÀ¤¬¹â¤Þ¤ê¤Þ¤·¤¿¡£ | 
|  | ¤¿¤È¤¨¤Ð¡¢°ì¤Ä¤Î Apache ¤Î¥¤¥ó¥¹¥È¡¼¥ë¤«¤é | 
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|  |  | 
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|  | ¥â¥¸¥å¡¼¥ë¤Ç´Êñ¤Ë³ÈÄ¥¤Ç¤¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤·¤¿¡£¤³¤ì¤Ï¡¢Apache ¥³¥¢ | 
|  | ¥Ñ¥Ã¥±¡¼¥¸¤È¡¢PHP3, mod_perl, mod_fastcgi <em>¤Ê¤É</em> ¤ÎÄɲäΠ| 
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|  | Â礤ÊÍøÅÀ¤¬¤¢¤ê¤Þ¤¹¡£</li> | 
|  |  | 
|  | <li>Apache ¥â¥¸¥å¡¼¥ë¤Î³«È¯¤¬´Êñ¤Ë¤Ê¤ê¤Þ¤¹¡£ | 
|  | ¤³¤ì¤Ï DSO ¤È <code class="program"><a href="./programs/apxs.html">apxs</a></code> ¤ÎÁȤ߹ç¤ï¤»¤Ë¤è¤ê¡¢Apache ¥½¡¼¥¹¥Ä¥ê¡¼¤Î | 
|  | ³°¤Çºî¶È¤Ç¤¡¢³«È¯Ãæ¤Î¥â¥¸¥å¡¼¥ë¤Î¿·¤·¤¤¥Ð¡¼¥¸¥ç¥ó¤ò | 
|  | ¼Â¹ÔÃæ¤Î Apache ¥µ¡¼¥Ð¤ËÁȤ߹þ¤à¤¿¤á¤Ë <code>apxs -i</code> ¤È | 
|  | <code>apachectl restart</code> ¤ò¹Ô¤Ê¤¦¤À¤±¤ÇÎɤ¯¤Ê¤ë¤«¤é¤Ç¤¹¡£</li> | 
|  | </ul> | 
|  |  | 
|  | <p>DSO ¤Ë¤Ï°Ê²¼¤Î·çÅÀ¤¬¤¢¤ê¤Þ¤¹:</p> | 
|  |  | 
|  | <ul> | 
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|  | ¥×¥é¥Ã¥È¥Õ¥©¡¼¥à¤Ë¤è¤Ã¤Æ¤Ï DSO µ¡¹½¤Ï»È¤¨¤Þ¤»¤ó¡£</li> | 
|  |  | 
|  | <li>Unix ¤Î¥í¡¼¥À¤¬¥·¥ó¥Ü¥ë¤Î²ò·è¤ò¤¹¤ëɬÍפ¬¤Ç¤¤¿¤Î¤Ç¡¢ | 
|  | ¤½¤Î¥ª¡¼¥Ð¥Ø¥Ã¥É¤Ë¤è¤ê¥µ¡¼¥Ð¤Îµ¯Æ°»þ´Ö¤¬Ìó 20% ÃÙ¤¯¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£</li> | 
|  |  | 
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|  | ÁêÂÐ¥¢¥É¥ì¥¹¤Î¤¿¤á¤ËÊ£»¨¤Ê¥¢¥»¥ó¥Ö¥é¤Î¥È¥ê¥Ã¥¯¤¬É¬Íפʤ³¤È¤¬¤¢¤ê¡¢ | 
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|  |  | 
|  | <li>DSO ¥â¥¸¥å¡¼¥ë¤Ï¤¹¤Ù¤Æ¤Î¥×¥é¥Ã¥È¥Õ¥©¡¼¥à¤Ç¾¤Î DSO ¤Ë´ð¤Å¤¤¤¿ | 
|  | ¥é¥¤¥Ö¥é¥ê¤ËÂФ·¤Æ¥ê¥ó¥¯¤Ç¤¤ë (<code>ld -lfoo</code>) | 
|  | ¤È¤¤¤¦¤ï¤±¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¤Î¤Ç (¤¿¤È¤¨¤Ð¡¢a.out ¤Î¥×¥é¥Ã¥È¥Õ¥©¡¼¥à¤Ç¤Ï | 
|  | ¤³¤Îµ¡Ç½¤Ï¤¢¤ê¤Þ¤»¤ó¤¬¡¢ELF ¤Î¥×¥é¥Ã¥È¥Õ¥©¡¼¥à¤Ë¤Ï¤¢¤ê¤Þ¤¹)¡¢ | 
|  | ¤¹¤Ù¤Æ¤Î¼ïÎà¤Î¥â¥¸¥å¡¼¥ë¤Ë DSO µ¡¹½¤ò»È¤¨¤ë¤ï¤±¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡£ | 
|  | ¸À¤¤´¹¤¨¤ë¤È¡¢DSO ¥Õ¥¡¥¤¥ë¤È¤·¤Æ¥³¥ó¥Ñ¥¤¥ë¤µ¤ì¤¿¥â¥¸¥å¡¼¥ë¤Î | 
|  | »È¤¨¤ë¥·¥ó¥Ü¥ë¤Ï¡¢ | 
|  | Apache ¤Î¥³¥¢¤Î¥·¥ó¥Ü¥ë¡¢C ¥é¥¤¥Ö¥é¥ê (<code>libc</code>) ¤È | 
|  | Apache ¥³¥¢¤¬»È¤Ã¤Æ¤¤¤ë¾¤Î¤¹¤Ù¤Æ¤ÎÀÅŪ¤Ê¥é¥¤¥Ö¥é¥ê¤Èưۥ饤¥Ö¥é¥ê¤Î | 
|  | ¥·¥ó¥Ü¥ë¡¢PIC ¤Ë¤è¤ëÀÅŪ¤Ê¥é¥¤¥Ö¥é¥ê (<code>libfoo.a</code>) ¤Î | 
|  | ¥·¥ó¥Ü¥ë¤Î¤ß¤ËÀ©¸Â¤µ¤ì¤Þ¤¹¡£¤½¤Î¾¤Î¥³¡¼¥É¤ò»È¤¦ÊýË¡¤Ï¡¢ | 
|  | Apache ¥³¥¢¼«¿È¤¬¤¹¤Ç¤Ë¤½¤Î¥³¡¼¥É¤Ø¤Î»²¾È¤¬¤¢¤ë¤è¤¦¤Ë¤¹¤ë¤«¡¢ | 
|  | <code>dlopen ()</code> ¤ò»È¤Ã¤Æ¥³¡¼¥É¤ò¼«Ê¬¼«¿È¤Ç¥í¡¼¥É¤¹¤ë¤«¤Î | 
|  | ¤É¤Á¤é¤«¤·¤«¤¢¤ê¤Þ¤»¤ó¡£</li> | 
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