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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:01:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:01:30 +0000 |
| commit | 6beeb1b708550be0d4a53b272283e17e5e35fe17 (patch) | |
| tree | 1ce8673d4aaa948e5554000101f46536a1e4cc29 /docs/manual/programs/apxs.html.en | |
| parent | Initial commit. (diff) | |
| download | apache2-6beeb1b708550be0d4a53b272283e17e5e35fe17.tar.xz apache2-6beeb1b708550be0d4a53b272283e17e5e35fe17.zip | |
Adding upstream version 2.4.57.upstream/2.4.57upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'docs/manual/programs/apxs.html.en')
| -rw-r--r-- | docs/manual/programs/apxs.html.en | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/docs/manual/programs/apxs.html.en b/docs/manual/programs/apxs.html.en new file mode 100644 index 0000000..40556b7 --- /dev/null +++ b/docs/manual/programs/apxs.html.en @@ -0,0 +1,364 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head> +<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" /> +<!-- + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + This file is generated from xml source: DO NOT EDIT + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + --> +<title>apxs - APache eXtenSion tool - Apache HTTP Server Version 2.4</title> +<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> +<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> +<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" /> +<script src="../style/scripts/prettify.min.js" type="text/javascript"> +</script> + +<link href="../images/favicon.ico" rel="shortcut icon" /></head> +<body id="manual-page"><div id="page-header"> +<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p> +<p class="apache">Apache HTTP Server Version 2.4</p> +<img alt="" src="../images/feather.png" /></div> +<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div> +<div id="path"> +<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.4</a> > <a href="./">Programs</a></div><div id="page-content"><div id="preamble"><h1>apxs - APache eXtenSion tool</h1> +<div class="toplang"> +<p><span>Available Languages: </span><a href="../en/programs/apxs.html" title="English"> en </a> | +<a href="../fr/programs/apxs.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ko/programs/apxs.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | +<a href="../tr/programs/apxs.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p> +</div> + + <p><code>apxs</code> is a tool for building and installing extension + modules for the Apache HyperText Transfer Protocol (HTTP) server. This is + achieved by building a dynamic shared object (DSO) from one or more source + or object <var>files</var> which then can be loaded into the Apache server + under runtime via the <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code> + directive from <code class="module"><a href="../mod/mod_so.html">mod_so</a></code>.</p> + + <p>So to use this extension mechanism your platform has to support the DSO + feature and your Apache <code class="program"><a href="../programs/httpd.html">httpd</a></code> binary has to be built with the + <code class="module"><a href="../mod/mod_so.html">mod_so</a></code> module. The <code>apxs</code> tool automatically + complains if this is not the case. You can check this yourself by manually + running the command</p> + + <div class="example"><p><code> + $ httpd -l + </code></p></div> + + <p>The module <code class="module"><a href="../mod/mod_so.html">mod_so</a></code> should be part of the displayed list. + If these requirements are fulfilled you can easily extend your Apache + server's functionality by installing your own modules with the DSO mechanism + by the help of this <code>apxs</code> tool:</p> + + <div class="example"><p><code> + $ apxs -i -a -c mod_foo.c<br /> + gcc -fpic -DSHARED_MODULE -I/path/to/apache/include -c mod_foo.c<br /> + ld -Bshareable -o mod_foo.so mod_foo.o<br /> + cp mod_foo.so /path/to/apache/modules/mod_foo.so<br /> + chmod 755 /path/to/apache/modules/mod_foo.so<br /> + [activating module `foo' in /path/to/apache/etc/httpd.conf]<br /> + $ apachectl restart<br /> + /path/to/apache/sbin/apachectl restart: httpd not running, trying to start<br /> + [Tue Mar 31 11:27:55 1998] [debug] mod_so.c(303): loaded module foo_module<br /> + /path/to/apache/sbin/apachectl restart: httpd started<br /> + $ _ + </code></p></div> + + <p>The arguments <var>files</var> can be any C source file (.c), a object + file (.o) or even a library archive (.a). The <code>apxs</code> tool + automatically recognizes these extensions and automatically used the C + source files for compilation while just using the object and archive files + for the linking phase. But when using such pre-compiled objects make sure + they are compiled for position independent code (PIC) to be able to use them + for a dynamically loaded shared object. For instance with GCC you always + just have to use <code>-fpic</code>. For other C compilers consult its + manual page or at watch for the flags <code>apxs</code> uses to compile the + object files.</p> + + <p>For more details about DSO support in Apache read the documentation of + <code class="module"><a href="../mod/mod_so.html">mod_so</a></code> or perhaps even read the + <code>src/modules/standard/mod_so.c</code> source file.</p> +</div> +<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#synopsis">Synopsis</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#options">Options</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#examples">Examples</a></li> +</ul><h3>See also</h3><ul class="seealso"><li><code class="program"><a href="../programs/apachectl.html">apachectl</a></code></li><li><code class="program"><a href="../programs/httpd.html">httpd</a></code></li><li><a href="#comments_section">Comments</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="synopsis" id="synopsis">Synopsis</a></h2> + <p><code><strong>apxs</strong> -<strong>g</strong> + [ -<strong>S</strong> <var>name</var>=<var>value</var> ] + -<strong>n</strong> <var>modname</var></code></p> + + <p><code><strong>apxs</strong> -<strong>q</strong> + [ -<strong>v</strong> ] + [ -<strong>S</strong> <var>name</var>=<var>value</var> ] + <var>query</var> ...</code></p> + + <p><code><strong>apxs</strong> -<strong>c</strong> + [ -<strong>S</strong> <var>name</var>=<var>value</var> ] + [ -<strong>o</strong> <var>dsofile</var> ] + [ -<strong>I</strong> <var>incdir</var> ] + [ -<strong>D</strong> <var>name</var>=<var>value</var> ] + [ -<strong>L</strong> <var>libdir</var> ] + [ -<strong>l</strong> <var>libname</var> ] + [ -<strong>Wc,</strong><var>compiler-flags</var> ] + [ -<strong>Wl,</strong><var>linker-flags</var> ] + <var>files</var> ...</code></p> + + <p><code><strong>apxs</strong> -<strong>i</strong> + [ -<strong>S</strong> <var>name</var>=<var>value</var> ] + [ -<strong>n</strong> <var>modname</var> ] + [ -<strong>a</strong> ] + [ -<strong>A</strong> ] + <var>dso-file</var> ...</code></p> + + <p><code><strong>apxs</strong> -<strong>e</strong> + [ -<strong>S</strong> <var>name</var>=<var>value</var> ] + [ -<strong>n</strong> <var>modname</var> ] + [ -<strong>a</strong> ] + [ -<strong>A</strong> ] + <var>dso-file</var> ...</code></p> +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="options" id="options">Options</a></h2> + <h3><a name="options.common" id="options.common">Common Options</a></h3> + <dl> + <dt><code>-n <var>modname</var></code></dt> + <dd>This explicitly sets the module name for the <code>-i</code> (install) + and <code>-g</code> (template generation) option. Use this to explicitly + specify the module name. For option <code>-g</code> this is required, for + option <code>-i</code> the <code>apxs</code> tool tries to determine the + name from the source or (as a fallback) at least by guessing it from the + filename.</dd> + </dl> + + + <h3><a name="options.query" id="options.query">Query Options</a></h3> + <dl> + <dt><code>-q</code></dt> + <dd>Performs a query for variables and environment settings used to + build <code>httpd</code>. When invoked without <var>query</var> parameters, + it prints all known variables and their values. The optional <code>-v</code> + parameter formats the list output. + + <p>Use this to manually determine settings used to build the + <code>httpd</code> that will load your module. For instance use</p> + <div class="example"><p><code> + INC=-I`apxs -q INCLUDEDIR` + </code></p></div> + + <p>inside your own Makefiles if you need manual access to Apache's C + header files.</p></dd> + </dl> + + + <h3><a name="options.conf" id="options.conf">Configuration Options</a></h3> + <dl> + <dt><code>-S <var>name</var>=<var>value</var></code></dt> + <dd>This option changes the apxs settings described above.</dd> + </dl> + + + <h3><a name="options.template" id="options.template">Template Generation Options</a></h3> + <dl> + <dt><code>-g</code></dt> + <dd>This generates a subdirectory <var>name</var> (see option + <code>-n</code>) and there two files: A sample module source file named + <code>mod_<var>name</var>.c</code> which can be used as a template for + creating your own modules or as a quick start for playing with the + apxs mechanism. And a corresponding <code>Makefile</code> for even easier + build and installing of this module.</dd> + </dl> + + + <h3><a name="options.dso" id="options.dso">DSO Compilation Options</a></h3> + <dl> + <dt><code>-c</code></dt> + <dd>This indicates the compilation operation. It first compiles the C + source files (.c) of <var>files</var> into corresponding object files (.o) + and then builds a dynamically shared object in <var>dsofile</var> by + linking these object files plus the remaining object files (.o and .a) of + <var>files</var>. If no <code>-o</code> option is specified the output + file is guessed from the first filename in <var>files</var> and thus + usually defaults to <code>mod_<var>name</var>.so</code>.</dd> + + <dt><code>-o <var>dsofile</var></code></dt> + <dd>Explicitly specifies the filename of the created dynamically shared + object. If not specified and the name cannot be guessed from the + <var>files</var> list, the fallback name <code>mod_unknown.so</code> is + used.</dd> + + <dt><code>-D <var>name</var>=<var>value</var></code></dt> + <dd>This option is directly passed through to the compilation command(s). + Use this to add your own defines to the build process.</dd> + + <dt><code>-I <var>incdir</var></code></dt> + <dd>This option is directly passed through to the compilation command(s). + Use this to add your own include directories to search to the build + process.</dd> + + <dt><code>-L <var>libdir</var></code></dt> + <dd>This option is directly passed through to the linker command. Use this + to add your own library directories to search to the build process.</dd> + + <dt><code>-l <var>libname</var></code></dt> + <dd>This option is directly passed through to the linker command. Use this + to add your own libraries to search to the build process.</dd> + + <dt><code>-Wc,<var>compiler-flags</var></code></dt> + <dd>This option passes <var>compiler-flags</var> as additional flags to + the <code>libtool --mode=compile</code> command. Use this to add local + compiler-specific options.</dd> + + <dt><code>-Wl,<var>linker-flags</var></code></dt> + <dd>This option passes <var>linker-flags</var> as additional + flags to the <code>libtool --mode=link</code> command. Use this + to add local linker-specific options.</dd> + + <dt><code>-p</code></dt> + <dd>This option causes apxs to link against the apr/apr-util libraries. + This is useful when compiling helper programs that use the apr/apr-util + libraries.</dd> + </dl> + + + <h3><a name="options.dsoinstall" id="options.dsoinstall">DSO Installation and Configuration Options</a></h3> + + <dl> + <dt><code>-i</code></dt> + <dd>This indicates the installation operation and installs one or more + dynamically shared objects into the server's <var>modules</var> + directory.</dd> + + <dt><code>-a</code></dt> + <dd>This activates the module by automatically adding a corresponding + <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code> line to Apache's + <code>httpd.conf</code> configuration file, or by enabling it if it + already exists.</dd> + + <dt><code>-A</code></dt> + <dd>Same as option <code>-a</code> but the created <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code> directive is prefixed with a hash + sign (<code>#</code>), <em>i.e.</em>, the module is just prepared for + later activation but initially disabled.</dd> + + <dt><code>-e</code></dt> + <dd>This indicates the editing operation, which can be used with the + <code>-a</code> and <code>-A</code> options similarly to the + <code>-i</code> operation to edit Apache's <code>httpd.conf</code> + configuration file without attempting to install the module.</dd> + </dl> + +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="examples" id="examples">Examples</a></h2> + <p>Assume you have an Apache module named <code>mod_foo.c</code> available + which should extend Apache's server functionality. To accomplish this you + first have to compile the C source into a shared object suitable for loading + into the Apache server under runtime via the following command:</p> + + <div class="example"><p><code> + $ apxs -c mod_foo.c<br /> + /path/to/libtool --mode=compile gcc ... -c mod_foo.c<br /> + /path/to/libtool --mode=link gcc ... -o mod_foo.la mod_foo.slo<br /> + $ _ + </code></p></div> + + <p>Then you have to update the Apache configuration by making sure a + <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code> directive is present to + load this shared object. To simplify this step <code>apxs</code> provides + an automatic way to install the shared object in its "modules" directory + and updating the <code>httpd.conf</code> file accordingly. This can be + achieved by running:</p> + + <div class="example"><p><code> + $ apxs -i -a mod_foo.la<br /> + /path/to/instdso.sh mod_foo.la /path/to/apache/modules<br /> + /path/to/libtool --mode=install cp mod_foo.la /path/to/apache/modules + ... + chmod 755 /path/to/apache/modules/mod_foo.so<br /> + [activating module `foo' in /path/to/apache/conf/httpd.conf]<br /> + $ _ + </code></p></div> + + <p>This way a line named</p> + + <div class="example"><p><code> + LoadModule foo_module modules/mod_foo.so + </code></p></div> + + <p>is added to the configuration file if still not present. If you want to + have this disabled per default use the <code>-A</code> option, + <em>i.e.</em></p> + + <div class="example"><p><code> + $ apxs -i -A mod_foo.c + </code></p></div> + + <p>For a quick test of the apxs mechanism you can create a sample Apache + module template plus a corresponding Makefile via:</p> + + <div class="example"><p><code> + $ apxs -g -n foo<br /> + Creating [DIR] foo<br /> + Creating [FILE] foo/Makefile<br /> + Creating [FILE] foo/modules.mk<br /> + Creating [FILE] foo/mod_foo.c<br /> + Creating [FILE] foo/.deps<br /> + $ _ + </code></p></div> + + <p>Then you can immediately compile this sample module into a shared object + and load it into the Apache server:</p> + + <div class="example"><p><code> + $ cd foo<br /> + $ make all reload<br /> + apxs -c mod_foo.c<br /> + /path/to/libtool --mode=compile gcc ... -c mod_foo.c<br /> + /path/to/libtool --mode=link gcc ... -o mod_foo.la mod_foo.slo<br /> + apxs -i -a -n "foo" mod_foo.la<br /> + /path/to/instdso.sh mod_foo.la /path/to/apache/modules<br /> + /path/to/libtool --mode=install cp mod_foo.la /path/to/apache/modules + ... + chmod 755 /path/to/apache/modules/mod_foo.so<br /> + [activating module `foo' in /path/to/apache/conf/httpd.conf]<br /> + apachectl restart<br /> + /path/to/apache/sbin/apachectl restart: httpd not running, trying to start<br /> + [Tue Mar 31 11:27:55 1998] [debug] mod_so.c(303): loaded module foo_module<br /> + /path/to/apache/sbin/apachectl restart: httpd started<br /> + $ _ + </code></p></div> + +</div></div> +<div class="bottomlang"> +<p><span>Available Languages: </span><a href="../en/programs/apxs.html" title="English"> en </a> | +<a href="../fr/programs/apxs.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ko/programs/apxs.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | +<a href="../tr/programs/apxs.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p> +</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div> +<script type="text/javascript"><!--//--><![CDATA[//><!-- +var comments_shortname = 'httpd'; +var comments_identifier = 'http://httpd.apache.org/docs/2.4/programs/apxs.html'; +(function(w, d) { + if (w.location.hostname.toLowerCase() == "httpd.apache.org") { + d.write('<div id="comments_thread"><\/div>'); + var s = d.createElement('script'); + s.type = 'text/javascript'; + s.async = true; + s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier; + (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s); + } + else { + d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>'); + } +})(window, document); +//--><!]]></script></div><div id="footer"> +<p class="apache">Copyright 2023 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p> +<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!-- +if (typeof(prettyPrint) !== 'undefined') { + prettyPrint(); +} +//--><!]]></script> +</body></html>
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